Other countries have higher minimum wage but more "third spaces", so I don't think this argument holds water. Also if the minimum wage increases, that puts pressure to increase all other wages.
The connection between wages and the number of third spaces is a little dubious. But, the complaint about whinging is valid - "Why can't a commercial organization create a third space for me, according to how I'd like it to be, or evn how it used to be" is the whinge I hear. Third places exist, but if it's not your favorite Starbucks, well, just move on.