I think most people wouldn't say something if your diaper is peeking out above your pants/shorts, but there are places I wouldn't want to have my diapers seen. One such place is when I am teaching at school. I normally dress in business casual, but there are times when we are allowed to wear jeans, like on field day, or at the last couple of weeks of school. There were some days a couple of weeks ago where I was wearing jeans, and I had to make sure I wore shirts that were long enough to stay tucked in when I would reach for something or when I was on the carpet playing games with the kids, and on field days, I had to make sure my shirts would come far enough below my waist. If any of my students saw me in diapers, they would get confused and wonder why their teacher was wearing them. The other place I have to be careful is around family.