Where are the grownups?

Why is it that when things are triggered its always the young and the irrational that come out? 

Where do the grown ups go? 

I know they are around because they do the day-to-day, they manage things and make sure that bills get paid and work gets done but the minute my guard is down and something attacks the system then it's total chaos and the only way to stop it is to just shut down everything outside and completely internalise the pain.

Isn't this what got me into this mess in the first place?