I think people’s thoughts about how people should sit will depend on where they are in the world and the setting of their class. I know some people who feel very comfortable and relaxed sitting with their legs crossed - some tots, some teens, and some beyond that. I know others who can’t or are uncomfortable sitting that way for various reasons, so they don’t. I on the other hand, change the way I sit really often, independently of a desire to look one way or another.

I agree, the most important thing for a teacher to do in Sunday School is to help everyone feel loved and comfortable when they are in class, and I have heard students say that seating does play a role in that.

So, I think that raising concerns like you’ve done is healthy. When lovingly combined with a prayerful trust that everyone is individual and that God is leading us all and will adjust things as/if needed - that’s the best.

You aren’t being negative. There was a female teenager with her feet in the chair, too. Did you notice how many times they had to change leg positions during their talk? They may have been trying to make themselves look cool, but I’m sure it really wasn’t as comfortable as they thought it was. They talked about having Sunday School outside, so maybe Indian Style works for an outdoor setting. But again, for an hour-long class you’d probably want to get up and walk around.