Don't need one for a Sport Pilot License.
Saw an article somewhere the FAA is raising the weight limit on that too.
One of my infirmities tells me that I would be a fool to be flying today. Especially flying close to the ground where wires, TV towers, logs in the water, etc. are traps.
And I am in the wrong part of the world. I doubt that there is a plane on floats within 200 miles of here.
The time for that passed long ago. That kind of fling is for guys that are really sharp eyed and quick.