It's not old fashion to follow established etiquette. But, then again, we do require the boys to say ma'am and sir, so we probably are a bit old fashioned.
We teach our boys to take off their hats at dinner tables and inside someone else's private spaces (homes) and church and for prayer no matter where we are.
We also have a casual, idea about entering for worship. Every other function at church that isn't formal has us in more come as you are, but for worship, we do at least do nice casual, jeans and nice shirts or better. But that's a family thing, not a church thing. G-d cares more about attitude than He does attire
