First of all, most Amish groups are allowed to use buttons on their clothing. I’m not sure if this individual is Amish, conservative Mennonite, or just trying on the outfit, but his getup is pretty average for an Amish man. read more
Coats and vests are fastened with hooks and eyes but shirts have buttons (it is a myth that the Amish shun buttons). Men’s trousers must not have creases or cuffs. Married men must grow their beards whilst mustaches are forbidden. Amish women cannot wear patterned clothing or jewelry and they are not permitted to cut their hair. The length of clothing, like dresses, is strictly governed by the Ordnung of the community. read more
~ Kav Rees. It wouldn’t be very practical for men to use pins on their clothes, for a woman however it is much more practical to use pins rather than buttons. read more