Child lock for a certain speed

I wish i want a feature to limit the speed of ather to a certain level which is customizable by using a lock code or pass code which is customized by owner so that it can be used by children and senior citizen flawlessly (like profile for each user of a family)

I was just wondering, whether we can have a training Mode in scooter. Something like the parking mode. The speed can be limited or set as per requirement. This would really help someone new who is learning. What are your opinions, please do share