I think Japan is leading in this trend, or, that's what I'm hearing about; a lot of people who prefer to be stuck indoors, or work for most of the day. Actually I don't think they prefer it, but what is the alternative?

Anyway the result of that is a decline in birth rates which will eventually lead to stabilizing or decreasing population. Which I think, in theory, is fine as long as it's stable for a long period of time and evenly distributed among age cohorts (which isn't the case in Japan). In practice though, the current economy is trained for a constant population increase; a lot of countries rely on immigration to maintain said population (and economic) increase.