Firstly, I'll repeat what I posted a while back about how Corrie could have been left to drive in; Friday nights it was usually meet in the bar after work & a couple of people would volunteer to drive into town. The arrangement would be "we're leaving from this place in the car park at X o'clock" and if you weren't there, tough, you didn't get much leeway. Those who had been drinking would want to get off into town, and if you're sober and driving it could get rowdy if you hung round. If anyone had missed a lift, they either caught up by taxi or didn't bother.
Once in town there would be some kind of plan for which bars & clubs to visit, sometimes a takeaway at the end of the night. People would wander off, but just within a bar to chat someone up and there would be falling asleep in a corner seat; somehow even the less popular in the group would get rounded up and we'd move on together. I don't even recall stories from other sections on the bases where people had wandered off.
Ok, some of the lads had to be persuaded not to go off with a girl from a bar, and I had to see a groom safely back to base on his stag night, but there were always some sensible heads on and we looked out for each other. If I had heard anything about any of my guys sleeping in doorways there would have been something said!