Do you let your kids have sleepovers?

Something about it just makes me feel so uncomfortable. I grew up having tons of sleepovers and it was so much fun so I understand my daughter wanting to have sleepovers. We’ve had plenty of sleepovers at our house which is fine.. but my daughter wants to sleep out and continues to ask. I’ve let her attend sleepover party’s because I guess it felt safer with 7+ girls there apposed to just her. Idk.

Do you let your kids have sleepovers? At what age did you start allowing it?