I used to play strip games as a mid-teenager and sometimes lost on purpose, mainly to encourage other people to play to the end. I think it worked. Me being the first one prepared to get completely naked during a game seemed to encourage the others. Playing later as an adult, it wasn’t my idea to start with so I didn’t need to drive things forward. I think I suggested, and did, the first outdoor dare, probably for the same reason but partly just out of devilment.