It is common for prospective handlers to ask, “What is the best assistance dog?” or “Which breed makes the best assistance animal?” While understandable, these questions assume there is a single ideal animal for every person and every situation. In reality, there is no universally “best” assistance animal. The most appropriate animal is the one whose individual characteristics, health, temperament and abilities are the best match for the person’s functional needs, environment and goals.

One Size Does Not Fit All

People seeking assistance animals have diverse disabilities, lifestyles, occupations, living arrangements and support needs. Likewise, animals vary considerably in their temperament, motivation, physical abilities and behavioural characteristics.

An animal that is an excellent match for one person may be entirely unsuitable for another.

For example, factors influencing suitability may include:

the person’s disability and functional goals
home environment
work or study commitments
family composition
activity level
transport requirements
housing restrictions
climate
other animals in the household
financial capacity to meet ongoing care needs

Successful matching considers both members of the partnership—not just the animal.

Different Roles Require Different Strengths

Not all assistance animals perform the same tasks.

A dog suited to providing autism support for a young child may require different characteristics from one assisting an adult with PTSD, diabetes, hearing loss or mobility impairment.

Some roles benefit from animals that are:

highly social and people-focused
calm in crowded environments
physically robust
naturally observant
highly food motivated
independent problem-solvers
comfortable working for extended periods

No individual animal excels equally in every area.

Selecting an animal should therefore begin with identifying the occupational demands of the role rather than selecting a breed first.

Breed Influences Probability, Not Certainty

Certain breeds have consistently demonstrated higher success rates in assistance work because they possess behavioural and physical characteristics that are advantageous for the role.

However, even within these breeds:

not every puppy will become an assistance animal
some individuals will be unsuitable from an early age
others may require career changes later due to health or behavioural concerns

Conversely, occasionally an individual from a less commonly used breed may prove to be an excellent assistance animal because of its unique temperament and suitability for a particular handler.

Professionals should therefore think in terms of likelihood, not guarantees.

Success Depends on the Partnership

An assistance animal should never be considered in isolation.

Success depends on the interaction between:

the handler
the animal
the trainer
the occupational therapist
the veterinarian
the environments in which the team will work

Even an exceptionally capable dog may struggle if matched with a handler whose lifestyle, expectations or support needs are incompatible with the dog’s characteristics.

Likewise, a dog that is considered average in one situation may become an outstanding assistance animal when carefully matched with the right person.

The partnership—not the individual animal—is what determines long-term success.

Avoid Absolute Statements

Prospective handlers are frequently exposed to advice such as:

“Labradors are the best assistance dogs.”
“Border Collies are too energetic.”
“Rescue dogs never make good assistance animals.”
“Only purpose-bred dogs succeed.”

While each statement may contain a small element of truth in some circumstances, none is universally accurate.

Absolute statements oversimplify a complex decision-making process and can result in unrealistic expectations or inappropriate selection.

Evidence-informed practice recognises that suitability exists along a continuum rather than as a simple yes-or-no decision.

Practice Example

WAFA was approached by two prospective handlers who both requested a Labrador Retriever because they had been told Labradors were “the best assistance dogs.” Following comprehensive assessments, it became clear that their needs differed substantially. One required a larger, highly social dog capable of working confidently in busy public environments, making a Labrador an appropriate choice. The other lived in a small apartment, travelled frequently on public transport and required fewer physical tasks, leading WAFA to recommend considering a smaller breed with characteristics better suited to that individual’s lifestyle. Although both clients initially requested the same breed, evidence-based assessment demonstrated that the most appropriate assistance animal depended on the person, not on popularity or reputation.

Occupational Therapy Considerations

Occupational therapists play an important role in helping clients move beyond the idea of a “best” assistance animal. Instead, discussions should focus on identifying the occupational goals the animal is intended to support and the behavioural, physical and welfare characteristics required to achieve those goals safely and effectively.

The most successful assistance animal is not the most popular breed, the most expensive puppy or the animal with the most impressive pedigree. It is the individual animal that is ethically bred or selected, behaviourally and physically suited to the role, and carefully matched to the unique needs, environment and long-term goals of the person it will support.

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