Cocker Spaniels are known to be very tolerant and patient with children of all ages which is one of the reasons they have remained such popular family pet the world over.  With this said any playtime or interaction between the kids and a dog should always be well supervised, especially when toddlers are around. If well socialised when puppies, Cocker Spaniels tend to be very good around other family pets and this includes cats and small animals commonly found in the home which is also due to the fact they are very social dogs by nature.