Oh it's not a serious thing but just one more habit to break. I'm a "thumber" and cannot stand the fingertip touch except helicopters. I would think it would be a bit embarassing to be at a Fly-in and have to get out in the middle of the runway to take off while others are up in the air. It's just part of the basics like flying a simple traffic pattern but instead many instructors just let them go all over the place and then become targets of people we complain about right here when "we/some of us" are responsible for this in the first place.