It would be your choice, yes, but it would definitely turn a few heads in your direction.... I personally have only worn diapers under my regular clothing (which is very childlike in appearance - 10 year old maybe). I have always wanted to wear my onesie underneath, but that would be too hot. I wouldn't mind going out in my onesie without my regular clothing as camouflage, but doing so would scare me to death that someone would see. People are bound to notice and society is very judgemental about choices that adults make that are outside of their age group.