There are tons of regulations around gardening (illegal plant/seed imports in many states, regulations on how your yard looks, sale of produce); playing instrum

There are tons of regulations around gardening (illegal plant/seed imports in many states, regulations on how your yard looks, sale of produce); playing instruments (when/where/how loud); sports (depending on context); cooking (for public consumption or distribution, even if free); sex (although most of those are going away).