We can't travel in full-size houses.
Absolutely. 💯
There are some boats called widebeams, that are twice the width of narrowboats and are suitable for people who have a great desire to live on the canals. However, the widebeams are limiting in terms of cruising, as only some canals are wide, and there are very few locks that widebeams can ascend and descend to different levels, along the canal... (like going up and down hills) since canals are manmade.
I trust that you're having a great weekend:))