My grandparents are Mennonite. My grandma (actuall step-grandma) is a former Amish whose father turned the whole family (10 kids) into Mennonites when she was 18.
They happen to live in “Amish Country” in Ohio, but that’s just because it’s where all her family is. My grandfather was a member of a Mennonite church in Bedford, Ohio (very citified suburb of Cleveland) for about 45 years until he got re-married and moved out to the country.
My grandparents only shun technology cuz they’re old and cranky, not cuz they’re Mennonite. My grandpa loves his cars!
Also their church is about 10x as spectacular as my Lutheran church. Mine’s a barn compared to theirs.
From what I’ve known of my grandparents friends and fellow church-goers, the Mennonites in their area are really really into charity, helping our their fellow man and learning all they can about the bible. Sounds like any other Christians to me!