could this possibly be the worst idea in the history of drinking laws?

i go into the pub tonight, one in which i have drank in many occasions in the past, and i get asked for ID because i look under 21, now it's my own fault for not taking mine out, forgive me for being 20 and actually looking it, but i don't think it's necessary to carry it everywhere. so i actually have to go home and get it before she serves me, there's initiatives and there is common sense. people really should use it sometimes.