It’s disturbing to me that so many people search for what something is used for or what’s the value or right to life a creature has. The point of life is to live. If you are successful you maybe make a child or split into a copy of yourself when you get enough food.
Purpose is something you accept for yourself. Imposing it on others is diabolically evil when they don’t have a thing to do with your clade. And still, it would be the case that a person would look at an animal and say “what’s the point of you?”
I’ll make it impossible to overlook my marijuana use.