I used to work the doors in and around Portsmouth, Clubs, pubs and bars.
I have confiscated fake IDs (in this case a fake driving licence) off people and handed them to the police. The copper rold me so long as the holder was not trying to use it illegally he could have it back, and handed it back to him. Surely trying to gain access to an over 18s nightclub is useing it illegally.
Anyway, we used to ID everyone weather you looked 17 or 45, there are several reasons for this.
1, the obvious age, if you are under 18 you should not be in the club
2, we Know you have got ID on you when you are on the premeseis, if you kick off or cause damage we know you have some form of ID saying who you are, The police liked this policy.
3, If something happens to you, and you get split from your mates, we know who you are.
4, If you get smashed and lose your friends, see above.
5, Location, portsmouth being as it is, we want to know who is in the club, sailors, locals, football fans, if there has been a match on in town and a ship is in we want to know where you are from, if you are a londoner on a west ham match day, why are you here, are you going to cause trouble, do we need to keep an eye.
People who dont like giving ID normally have something to hide, so they would be turned away or if reluctant to shoe ID would be searched.
There are laws around drinking age too. if an 18 year old lad pulls a 15 year old girl in the club, has sex with her and she tries to prosecute the law will favour the lad as the girl should not have been there in the first place.
I have come accross 15, 16, 17 year olds passed out in the toilets because they cant hold there drink, and then we have the parents on our case saying why did you lit her/him in. (its easier for girls with make up etc)
My daughters will be 18 soon enough, they will be able to have alcohol under supevision of the house before they are 18, so they can learn to respect the effects, as i did as a kid. Then when they hit 17 or 18 they are not going to have to go out and get smashed with out telling us, I am sure they will as i have done, but i would hope thay can learn to respect it and know that you dont have to get smashed to have a good time.
On that note.............I am off to the Pub