Talk:Tipping Point/@comment-254594-20161211164153/@comment-23712247-20161216084837

or at least in the case of schnees, perhaps it's because the semblance is hereditary.

Actually it could be, if the brain is in control over semblance, increased neagtive emotions and/or stress could probably cause the user to lose control of his/her semblance. Perhaps due to an imbalance of hormones or something in the brain, which could explain why it would be more likely to happen to someone of weiss' age