We make teenaged school students choose GCSEs and A-Levels that will likely DETERMINE THE COURSE OF THEIR ENTIRE LIFE. If their brains are underdeveloped, how is this allowed? They need at least another decade before they can be allowed to make these decisions.
/15
If under-25s are too neurologically underdeveloped to make decisions that affect their body and wellbeing, then that rules out all career athletes under that age. You can't possibly let a 18 year old take up a sport that comes with significant concussion risk, surely?
/16