Yes you could keep her as pet if it doesnt work out (you could still do the training and maybe she will get better and get another pup that was bred for it. It would be sad to lose a heart dog

and the puppy would be confused too.
I got Kono as a pet and then fell into IPO and then found out all the faults she has but I think she would do great with practice and time so Im sticking with it C: