You are missing the large number (majority) of boats that are not white or sparkly, but still use fuel. While a small number of lefties into the politics of jealousy might be in favour, Joe Tripper might be less in favour of the empty harbours and underused canals and rivers.

I wonder how much reduction in license income the EA and BW would face. CF Windermere I'd expect them to be quaking in their corporate boots.