I edited up some 8mm film of my aunt's wedding in the early 60's. That was an interesting document of the times. The couple left after the reception, with tin cans tied to the back of the car. There was a band for the evening do, but obviously no 'first dance', which is an American idea, which has been fairly recently adopted here. The following day the older women went round to the couple's flat to inspect all the presents.
The 'do' in Standish had an 80/20 split. 80% of the women were interested in the dancing and 80% of the men were clustered around the bar. There were about 20% of the men who might give the dancing a go, and about 20% of the women who preferred to be at the bar. I was playing at being a wedding videographer, and I found it was quite difficult to get shots of guests drinking at the bar, as opposed to dancing, which is easy. So the dancing is what tends to get recorded.