For those who have daughters, would you allow them to join beauty pageants when they grow up?

If it's adult beauty pageant, I will leave for her to decide and I believe it will be a once in a lifetime experience for her. If the pageant is for kids, I have to let her know that it's really for the fun and experience and do not take it personally if she is not the winner. Also have to let her know that beauty is skin deep not whether she is pretty on the outside.