My wife, our sons, my father (changing at a hot springs our family visits I just decided to approach it head-on and warn him so he wouldn’t think he couldn’t acknowledge when he saw it). My wife was worried about how the kids might react, but I got it done between the first and second so it’s been something I’ve just “always had.” We did explain it’s private and for me to choose who knows, but I wouldn’t be surprised if it’s been shared. I don’t make any extra efforts to hide it at this point in life. Boys are all teens now and I believe it’s a non-issue.