I know there are a few of us here, so here's a MEGA-MEGA-MEGA (not-so-Mega) THREAD to collect our trials and tribulations.
This article is why:
http://www.renegademothering.com/2015/07/21/dickinrestaurants/The number of times as a young'n that I was angry at nearby crying children is staggering, but after having a kid and having to take turns taking her outside when she cried and ending up eating a cold entree alone while she was "on duty," my empathy for the situation increased dramatically.
Even so, there are definitely parents who free-range their kids too liberally for my tastes.