The under 45's - making a big sacrifice, and likely suffer most in the long term..

[City123]

I wonder how much of that is down the the fact that a lot of social interactions for teenagers and people in their young 20s is done online?

If your main activities are playing computer games at home, then it wouldn't surprise me if some of the younger generations are just doing the things they always do, thereby neither increasing nor decreasing their social activities.

Maybe for schoolkids, but that isn't true of people who are 18+, Wetherspoons wouldn't survive without people in their 20s. Usually every Friday/Saturday every city centre in the country is full of people who are 18-35