As I am wont to do here sometimes, please allow me to wax nostalgic about my days (years) living in my 1977 VW camper all over Colorado and then later,
Europe and around the Med with my first wife. It was amazing, and SUPER COZY

Little RV lets you get into lots of places the big boys can't go, and it has everything you need. So for a
boat, I don't see why not, as long as you keep a hard eye on the
weather? We got three adults and three cats in this
family, so we needed/wanted something bigger afloat, but I could totally see taking something micro and making it adorable and fully functional. Much like bus life, tho, you gotta love things being SUPER COZY or you'll go crazy