In our society, when a person or thing cannot consent, another person or a thing can be assigned to consent on their behalf. This is how children get vaccines. This is how some people with mental illnesses have their finances managed. This is how Grandma gets looked after in the nursing home.

If you are okay with all of the above, then your problem is not with our model of delegated consent. Your problem is with the actions the delegate is choosing to take.

Now, if you would make it illegal for a delegate to consent to hair dying, then for consistency you would also need to be okay with parents not dying the hair of their children. Children cannot consent. Is that a statement you're willing to make?

Depends on the dye, depends on the process

There are a heck of a lot of places that only use dyes that are non-toxic in case they lick themselves

They can't consent to being in a zoo either, but I bet you still go.

When I was a kid there was a family with 2 standard poodles, WHITE standard poodles. They dyed one blue and one pink. The dogs looked so miserable after they were dyed it was sad.

I didnt say it that its not cruel to cage dogs. I said its less cruel than caging a panda because they are more used to it.

I dont know if its fair to call it that, but dogs are probably still pretty "sad" about sitting inside doing nothing all day, especially when they are alone. If you have ever lived with a farm dog that was free to go out and wherever it wants 24/7 by itself, then indoor "incarcerated" dogs will seem like an empty shell to you.

Upvote for the hitchhikers guide reference!!!

I don't know how accurate enslaving wolves is, though. It very well could have been a mutually beneficial relationship at the beginning.