I can totally understand OP question. I do this for family all the time. I'm local with an AP, so I always offer to meet visiting family at the parks. I'll stay with the younger kids, who aren't tall enough to ride the big rides, while the parents go on a "big" ride together. We don't spend the whole afternoon apart or even a few hours. They leave just long enough to use their FP for Space, then come back and continue with their kids, then leave again to use their FP for Indy then come back with the kids. It's not sad at all. They're with their kids most of the day, but they also want to enjoy these rides together, instead of alone. I think it's a great idea for someone to start this service. If my DD18 still had an AP (she didn't renew this year because she spends 8 months out of the year out-of-state at college) I would suggest to her to offer this service. She still would probably love to, but the admission would have to be paid. She's working as a nanny this summer anyway. As a long time AP, she could probably even help with knowing how to navigate the park