Yes, because:

• a small apartment is more comfortable when you have other spaces where you can exist for free
• in our increasingly isolated society we need more spaces for serendipitous socializing

It does tie into affordability though, because the lack of third spaces is in itself an indication of an over-exploited real-estate market. A third space is almost by definition not maximally exploited, because you’re allowing non-paying patrons to take space which could be used by paying ones. Allowing non-paying patrons is only a moral question up to some point, after that it’s just the market forcing the choice between more exploitation or bankruptcy.