By certain chassidim and in israel there is no isle the chupa is outside by a door the chossen is walked outside two steps and he is under the chuppa and then the kallah the same
I have a bigger question on tznius here is a very frum boy (for example) who never looked at girls on his holiest day comes out of yichud room stands next to his kallah the doors open and he is standing in front of hundreds of girls and women some of which r scream jumping…even if he doesn’t escort her in or go under the “arch” and is wisked into the men y is this exceptable and it is done by ALL weddings when they r “introducing for the very first time…”