That’s like me telling millennials “go have kids!” The fact remains that both things are far less common than they used to be and that has societal implications.
They're more common, not less. Much more common. In the time period you're talking about, the only people you'd have had bridge nights with were neighbors and family friends. Today, in a city like Chicago, you could do 5 of them per week. Things were not better in this regard 30-40 years ago; they were worse.