No, we are not arguing. We are having an interesting discussion. That's what the forum for.
You also have to take the word of liquor stores and bars that they only sell to people over 21. Isn't that the same?
I know some people will always try to get around the laws, but it will keep most people in place for sure.
The whole point of having such license agreement is to cure the root problem of having overpopulated shelters due to mass abandoning of pets by irresponsible or incapable pet owners, as well as to solve the root problem for mass dying of pets in incapable hands. Yes, there will be people get around it, but those people won't be majority. With such license in place, there will be no more mass dying of fish, birds, and mass homeless dogs and cats.