To me it’s a personal decision.
I don’t have shore power setup and don’t want, need, nor care for it. You see, I keep my boat out on a mooring and when I ‘get away’ on my boat, I want to be away from others, so I’m more likely to drop anchor in a secluded spot somewhere. I'm not anti-social, but my boating is my relief from 'life' and is my way of life. Often I'll join other boats for raft-ups or docking at slips for Holiday events, but I guess I prefer to 'rough' it.
One season I slept on the boat every weekend from June through the beginning of September. I have equipped my boat to be a somewhat live-aboard for 2-3 days at a time and I do fine with propane, inverter, DC, and solar-powered devices. Or, I simply do without.
I fully realize I am the exception ...