I had intentions of using my boat for learning only, but it seems it may eventually become just a bit more. Its just how it worked out, I don't have much a choice unless I like to drive all the way home and waste my gas. Anyway, this boat I just bought last week, after laying in it today the thought came into my mind I would not have a problem if I ever wanted to live in it. Very cold outside but surprisingly warm inside it especially in the V berth. Although this boat does need interior work to be plush. If I were to live on it full time, I would pickup a portable ac unit, heater, small stove and porta potti. No harsh climates where I live, heat is a problem but thats what the portable ac is for and it would not have a problem cooling a small cabin. As for showers, I would just use the marina's showers.
Thing about me, I was one who lived in an 18-wheeler at one time for weeks at a time and never had a problem. The cabin in an 18-wheeler, although nice and plush is much smaller then that of a 25ft sailboat. Back then I was an over the road driver and made a good amount of money while doing that. Like the sailboat living, I guess its not for everyone but I personally never had a problem, the truck was really nice. For a large family with dogs and stuff, I doubt living aboard would ever work unless it was a huge 50ft yacht. For a single person or just a couple with no kids I think it would be much easier.
This said, I will actually be staying on my boat at least 3 nights out of the week probably starting next week. Plenty big enough for me. I for darn sure don't want to get off work, spend all evening working on my boat and then having to drive back home. When my boat gets fixed, I pull anchor and sail to southshore, stay in it there a few days out the week for a few months. So although I bought my boat to learn on without any intentions to live on it, I will be staying on it off and on. It basically will serve as my camp or second home or better yet my personal waterfront property
The best thing, like this I can sail more often after work instead of only on the weekends. Not to mention I can get a feel for living aboard if I ever wanted to truely have a boat as my one home.
It could be a good idea to get a decent sized boat (mine is only 25ft but looks big to me) as I done, and learn how to sail with it. Then test live on it by spending an evening and night here and there. Then try a couple nights, I imagine if you don't get sick after that you can probably live aboard it. At least a few nights will give you an idea if its for you or not. I will let you know how I make out doing this. I doubt I have a problem, let the boat rock me to sleep