To get their drivers license do they have to have a letter from the school where you live
Here you can't drive if you aren't in high school and online doesn't count.
If you teach your child and went through the superintendent you can get a letter from them but online doesn't count.
If you quit school before 18 they pull your licence untill you show proof of being in school or graduating.
At 18 you can apply for your license without proof of education.