I'll tell you one thing for free...
When they get to be high schoolers, you will realize that you wasted a lot of soap. The environment, both local and cultural, is just too much, and while I'll tell a kid to clean up their act now and then (you should hear my son having a bad time with a video game) it's not one of the hills I'm willing to die on.
It's their behavior I watch, and they're both turning out to be great people.