I see that we can finally put to rest the idea that one must “dress his best” for every davening. I agree. Therefore, the yeshivish way is only one of many ways to dress for davening, and the insistence on it is socially driven and nothing more. And yet, I have been the tenth man in a yeshivish mincha minyan (not in a yeshiva) more than once and watched them wait until another person dressed like them showed up before starting. But we have ten! Sorry, only nine.
I know it’s not personal, they don’t know me or know that I’m the MO old man yeshiva hater. It’s just that they were taught that people dressed like me don’t count for a minyan. For the record, I wear long pants,a buttoned down shirt, and shoes.