Can somebody update me on this, why do the hotels enforce an above 20/21 year old rule for guests? Is it just for when the guest is a working girl and not a civilian? I remember bringing a girl (civilian) I was on a date with to my hotel last trip and I had her show her ID at the reception because there were signs everywhere saying that all "guests" have to show ID at reception. The girl was 19 years old at the time and instead of keeping the ID the reception just smiled and handed it back to her while they kept the ID overnight of another girl (also civilian) I brought back to my hotel but who was 27 years old. I am planning on meeting the first girl again in 3 months and who will now be 20 years old, will this be a problem?