There will always be people that are unable to do personal risk evalution for themselves. Generally speaking the younger the more lopsided a situation may be. But not in their favour. Normally your self preservation instincts should prevent taking unreasonable risks.

That said I still see people doing it all the time in many things. They are either not aware of the risks or very poor evaluators of it. Poor math skills may actually contribute to it. To evaluate risk is an equation basically.