[bastardchild]

Especially if your primary goal is the social factor and the "having a schedule for a few hours a day"-thing (which I completely understand) and getting some money out of it is secondary, I guess a lot of people in that demographic might just opt for volunteering.

True, it completely fails to pay any bills, but depending on what you do, you might get some everyday benefits out of it and it's a lot less annoying and exhausting than many jobs you could do elsewhere. Plus, nobody bats an eye if you decide to go from one volunteering gig to another after a few months, after all you're doing it for free. Switching jobs is more of a hassle.

As far as I can see, this kind of working hours isn't accounted for in these charts and I see that group as prime candidates for deciding that none-paying but nice, meaningful work is better than pushing numbers for another few years when you could make do without it.