Also not to be discounted, most of the men are strong as a fucking ox too.
It's not surprising when one considers all the manual labor Amish men do in the course of a single day. When the reality show
Amish in the City aired, the non-Amish had a bit of eye-opening culture shock upon discovering exactly how much of the typical Amish day consisted of manual or physical labor.
I grew up with a lot of Mennonites. They tend to fuck a bit and smoke dope during their rumspringe, but not much worse. Most are extremely decent, simple folks, who do a lot of humanitarian work. Mennos are pretty fucking cool, if often strange socially
From what I recall, Mennonites are Amish with fewer restrictions/prohibitions on modern-day luxuries such as computers. Still, they have similar values about living the simple life and helping others when and as appropriate.
It's also not surprising what happens with Rumspringe. Some people are more grounded in their exploration of the "outer world" and others go all in and experiment with as many vices as possible.