Well, those Mennonite and Amish guys don't even care about that.... They've been lookin' at the same dress and hairstyle their whole lives!
The Amish have taken hugh cultural hits in the last couple of decades. Even the world of the Harrison Ford movie, "Witness", is fading fast. The skills shown in that wonderful barn-raising sequence are now extinct. It's now pole barns, like everyone else.
Some Amish are a bit casuistrical about technology. They'll have a shed with electricity and phone lines running in. Then they take the cordless phone to the house, or the store, and then take it back to the shed for recharging. I can't blame them, there are major changes in the world, and some of them for the better.
I really loved "Witness", especially when Harrison Ford applied the "g'nad treatment" to the city-slicker punk in town.