The most logical answer is because adults have more experience driving than teens because most of the time, practice helps to make perfect. But there are some teens who are better drivers than adults and teens that aren't great at driving at all, and the same can be with adults!
It helps control the sugar in the body
I don’t know if this is the best answer. But you should bake at the minimum amount asked so that you don’t burn it. It could still bake a little when you take it out, so you’d have to let it sit— this could be right I’m not 100% sure
That would most likely be True due to peer pressure, however, some people reject it and would leave this group of friends.