If I were to hazard a guess I'd say that the emphasis on white shirts and ties and conservative dress and grooming standards is a reaction to the rebelliousness of the fifties and sixties, when having a beard or not wearing a tie were seen as deliberate acts of nonconformity.
You are correct. This is a
part of the overall, underlying concept behind such things as they transpired in the last third of the 20th century.
It may have made sense back then but these days it seems a little dated and weird.
The revolutionary attitudes and style of the sixties is now the default position of the culture. Its simply been fully domesticated and absorbed into mainstream norms and mores. The grunge movement, which began in the 90s, is still with us, as are Hip Hop, "thug style", body piercing, tattooing, and other cultural Marxist/postmodern cultural forms that are very popular among substantial elements of the culture, increasing in popularity, and which are inconsistent with the gospel and what it is attempting to accomplish within the souls of those who accept it, and what it is trying to model to the deteriorating surrounding culture.
I can't tell you how many times non-members have told me that seeing missionaries on bikes with their white shirts and ties, helmets, and backpacks makes them think our church is a cult.
Yes, Bob, white shirts and ties remind people so much of the Manson Family.
Shall be move back toward reality now?