depends on what kind of animals they are. if they are animals like a rabbit, horse, pony, bear. then yes.
if its a dragon, beaver, or sasquatch, then no.
then its not immature, it depends on the dog.
if it was like a pomeranian or whatever, the purse dogs. then yes
well if they ment something. like i gave my bf two one of which was mine when i was going through a hard time when i was younger as though a symbol of the difficulites we had to go through for each other and the other was a sweet one i made. he gave me an otter one :D