It's completely unrealistic never to want to do anything to a house. You'd end up having to move every few years into new builds or newly renovated ones which cost a fortune.
Sounds like your OH is just lazy really.
Neither me or DH were particularly "DIY" kinds of people when we bought our first house. It was "moveinable" in that there was nothing instrinsically wrong with it. Decorating was bland but OK (painted woodchip and basketweave everywhere), carpets were slightly worn but OK, kitchen and bathroom was OK, boiler worked, etc. All very safe and boring really. We could have lived in it without doing anything for a few years easily had we wanted to.
But we didn't. We started off small & simple, doing simple jobs like decorating. Hardest thing is to get painted woodchip of the walls. Everything else is simple, we learned doing it together and reading one of the home DIY manuals we bought from cheap book shop (long before the internet, it's much easier now with youtube!).
As the years pass, you realise that you can do more and more, especially when you watch "tradesmen" do it and can see how simple most things really are (and how much of a bodge up mess a "professional" tradesmen can make of a simple job!).
I'd draw the line at removing walls, re-plastering, plasterboarding, etc., but I'm sure that a half competent DIY-er could do all that too!