It is fun to play back on occasion, but I am a big proponent of everyone playing the tee box they want. I will step back if the 3 others are playing blue and if blue isn’t well outside my comfort zone. More often though, I am stepping up to join others in the group rather than stepping back. It is a hobby we play for fun, no need to ruin a good day. They have slope/rating from each tee box to accommodate all golfers