The Fish & Game Dept has a lot to do with kayaking because F & G is the state dept that installs and maintains the many free-to-use boat launch ramps at lakes across the state.
About 3-5 years ago, F & G bought Downing's Landing in Alton Bay probably using funds raised from fishing licenses.
Getting access to the water, launching, and parking your car to unload the kayak off the roof rack is a key part of kayaking, so F & G is attached to kayaking/canoing/rowboats/small sailboats/stand up paddle boards and other non-motorized small boats.
Locally, Lakes Winnisquam, Squam, Newfound, and Winnipesaukee all have state launch ramps, totally free to use, so it seems like a $20 annual kayak fee stamp would be kayak money that is well spent.
Another way to raise needed funding is to install those 'iron deposit boxes' similar to what's used by the White Mountain National Forest at hiking trails, and charge $5/put-in, or $20/ annual sticker, so's the town launch ramp brings in funding when it is not staffed.
The local police could monitor the launch ramps from a distance with binoculars, make a blue lights pounce, and issue a $116.88 violation for kayaking without paying ....... book 'em
Barney ....... slap a ticket on their paddle ....... we got us another new customer ..... hee-hee-hee!