As a parent, I hope that my kids will let me know. I will trust them and give them my advices and blessing. It is important to respect your kids, but as a kid, also should respect your parent. When I took my 2B lesson last year, I have to get my wife's approval as well. The reason I gave to her was if we travel to Taiwan, I can rent a bike legally and then can pillion her around. Just got my bike lately and she didn't object to it as I told her that I need to practice regularly in case forget how to ride.