It's a cute idea, but not something I would require. All I want is for people to do their best taking care of their children. Make them wear headphones when they are watching the same DVD for five hours. Keep them from kicking my seat. Don't let them play with the tray table. It's good if you don't think it's cute when they dump juice on the seat next to them. Bring supplies to keep them busy during the flight. Realize that as a parent, you can't just tune out, drink and doze with your headphones on while your child need you. Your days of relaxing flights may be over for a while.
Let me try and "enjoy" mine. I understand the difficulties of flying with children and will not give you the evil eye when you board! Just do your best.