1. They can't move stage. Depending on their sleep schedule, this is easy, or it's still tiring.
2. They can move. They still have the baby sleep schedule. No sleep, no time.
3. They have a normal sleep schedule. You can sleep.
4. They can play with other kids. A chance to save time, if you can use it!
5. They go school. You have time.
6. They are teenagers. You wish they spent more time with you.
7. They move out. You miss them a lot.
8. They move far away. You miss them even more.