These days, obviously, all that has passed and instead we have a community of almost entirely leasure boaters - some choosing to own narrowboats [1] purely for pleasure, but a significant amount of us choose to live on them. Some based in marinas but quite a few of us (myself included) preferring a much more nomadic lifestyle - being obliged by law to move every 14 days at a maximum to new areas and consequentially experiencing the richness and beauty of what is, in my mind, a living museum - a testament to our past.
Life aboard a narrowboat is cozy. You never have much space but I don't find myself lacking. It gets cold in winter, but most of us have multifuel stoves which we stuff with coal and (often foraged) wood. Right now I'm sat listening to the wind and rain lashing against the boat (it's almost 4am so I should really get to bed), the boat gently rocking from the weather. And I can honestly say that there is nothing half so much worth doing as simply messing about in boats.