Why do the vast majority of romantic comedies depict people who are wealthy?

My wife has been on a rom-com binge over the last year or so and something I’ve noticed when I’m vaguely paying attention or walking past is that almost every single rom-com features people who are, at the very least, middle to upper-middle class. These characters all live in gigantic houses/apartments, have beautifully sparkling brand-new cars, take month-long vacations to their beachfront properties… it’s just so unrealistic and out of line with the life that the vast majority of us lead.

I understand some concepts - large rooms are easier to film in, rich people own nice things that set a beautiful scene, it’s not interesting to discuss financial issues all the time etc. but this seems (from my anecdotal perspective) to almost be a rule of the genre.

Some more food for thought:

https://www.digitalspy.com/movies/a867107/rom-coms-diversity-wealth-income/