I think it would depend on what you're breeding for.. if you're going to breed a litter to keep all the babies for yourself and you have no way to obtain rescues in your area.. I can understand that.. if you're really going to take responsibility for all those little meese then go ahead..
However if you plan to actually start breeding more than one litter and plan to sell or give them away I would say I don't agree.. breeding any animal from a pet store is not a good idea.. The only reason I think it would be ok if you were keeping them all and it was a one time thing then you would be the only one affected.. however you could still be producing mousies with genetic problems that you can't predict at all since you don't know their lines.. and that would be bad for all mousies involved..
Either way it's a very big responsibility.. you really really need to know any problems that can arise and have a vet that you can rely on if anything goes wrong.. and of course all the care and blah blah blah.. which I'm sure you've considered..
If you really want to get into it you should consider looking for actual mouse breeders.. get a couple mice from reputable breeders and go from there.. communicate to those breeders and then you'll have people to help you out and do it the best way possible
However if you plan to actually start breeding more than one litter and plan to sell or give them away I would say I don't agree.. breeding any animal from a pet store is not a good idea.. The only reason I think it would be ok if you were keeping them all and it was a one time thing then you would be the only one affected.. however you could still be producing mousies with genetic problems that you can't predict at all since you don't know their lines.. and that would be bad for all mousies involved..
Either way it's a very big responsibility.. you really really need to know any problems that can arise and have a vet that you can rely on if anything goes wrong.. and of course all the care and blah blah blah.. which I'm sure you've considered..
If you really want to get into it you should consider looking for actual mouse breeders.. get a couple mice from reputable breeders and go from there.. communicate to those breeders and then you'll have people to help you out and do it the best way possible