Maybe because they weren't actually shaming any class.

They’re telling on themselves. 🙂

The Civic is illustrating how mundane the event was, in contrast to the people who want beds of rose pedals and candles for their first time.

Civics catch a lot of strays due to the sheer number of them and how long those things last. The drive train can literally outlast the body work. So there are a whole lot of used Civics on the road being driven by "poor" people who can't afford better.

I see it kinda the same way as anything else, say, riding a bicycle: something normal, that is likely going to be part of your life and that you'll enjoy doing, but don't really need to if you don't want.

Sure you'll remember your first bike fondly (or not) but you can have others and your most memorable memories are most likely from the trips you'll take later.