I finally abandoned one of my pet... It's too expensive for me to keep on supporting both of them. I think, at this point I need to focus all my attention and and NP to just one. Since I can't play the games all the time I only get to earn so little NP for a day, not enough for me to be able to enroll my pet to decent training schools. So like real life, you definitely have to have money to be able to enroll your kids to decent schools.