In fairness it’s not that we do it because we don’t care, it’s because the Disney reservation system forces us to book for two people because it rarely shows availability for a single person.
I get why Disney limit availability for solo diners. They want to maximise profit by filling every available seat. But when I pay the same for my ticket to WDW as anyone else why should I be restricted in the restaurants I can book simply because I’m traveling alone.
Now I get the paradox - by booking two seats when I only need one I’m also restricting someone else from eating in that restaurant who also paid as much as me for a ticket to WDW. But as a single guest, I’m most likely to be seated at a table for two, meaning the second seat at that table is unavailable regardless if I were to book for one or two people, or turn up as a walk in.
One place that I never have an issue booking as a single guest is Germany in Epcot, where the tables of 8 (I think) are filled with multiple parties. I’ve had a couple of meals there, and had some great conversations with random families. I also have no problem eating at the bar next to strangers.
So come on Disney, sort out some more flexible seating and stop discriminating against us solo guests just to squeeze a few more bucks to the bottom line.