ok so this is just a little suggestion for if the mutts ever do come...
to make it easier for people to distinguish between the proper purebreds and the crosses, maybe the dogs could have alacrity kennel club certificates which prove that the dog has no crosses in its lineage, these could also be implemented to show whether the dog has been inbred or not too, This may also lead to other 'kennel clubs' on alacrity and it would be a good idea to make certain parts of the certificate editable incase the dogs gets sold on, but the certificates could be bought and any edits should be payed for (like in real life), this might aso help stabilise the economy.

oh and maybe people could pay for the privelige of allowing their mutts to participate in shows as I have a collie shcnauzer mix in real life and i've just spent £12 sending off his form to the kennel club to register him for trials as I know for a fact that there are registers for dogs where the dog does not have to be purebred to enter trials it's just the breed show they have to be purebred for... this could also lead to the creation of more trials/shows

I hope you guys understand what i'm saying, if you don't I try and rephrase it because i've gone all over the place with ths T.T