I agree with Robert also
it should be across all species the same happens with all domestic/ service animals i only kept it to dogs for this topic.
Honest people with the welfare of the animals at heart in whatever situation i think would be prepared to do that. it would stop so much of the (i can't be bothered to get my animal spayed so i will worry about what do with its offspring if/when it arrives)
How many times do we see adverts for animals. Pigs, goats, dogs, cats, horses free to good homes because people have bred these and havent got a market for them. they just assumed they could make a few quid and failed.
If it were humans breeding other humans for profit with no thought of health/intellect issues there would be public outcry! (what would we do with all the chavs,,,they'd never sell!
) so why should this happen to animals.!
we used to have dog licenses years ago and they were scrapped...Why? Because they were'nt worth the paper they were written on. you went to the post office paid your tiny fee and were issued the license.
They were'nt regulated and they had no relivence to the welfare of the dog. so i am not sure a license that you buy at the post office is the way to go i think it would need to go further, which is why i think qualifications would be the way to gain the license.
Once you could prove that you knew enough about the animal, the welfare, illnesses, basic training of said animal (if domestic) etc. before you could obtain a license.
purchasing of said animal without the license could be prohibited.
again these are just all ideas, that in a perfect world may work, however sadly we are'nt living in that perfect world so things probably wont change.