Good Morning Baren_
I'm actually Mennonite Brethren, yet another "branch" of the Mennonites.
Yes , I am very "normal" as I was not raised Mennonite...but Nazarene. My husband and I changed to Mennonite Brethren because beliefs are closer to what we believe as apposed to the Nazarenes. Anyway, we have friends in all areas of the Mennonites. It just depends on what "branch" of Mennonites... Amish of course are the strictest in dress, and association with non-mennonite. I prefer to say just Mennonite rather than break it down to Mennonite Brethren, Old order Mennonite, Progressive Mennonite....you get the picture... it would get confusing for some.
I'm not sure if I answered you question...I think that the more conservative Mennonite groups are in separate communities but the still venture out into the "world"