States rights, an issue that has not been resolved. It was the major issue in the civil war.
SOLUTION-BEATS ME.
You can buy a pistol in Fla and then sell it illegally in NY. Syringes are tightly controlled in NY. In fla you can buy them without prescription no questions asked. There are different legal drinking age. There are different driving age. There are different sales taxes. There are different enforcement of the right to vote. In NY yo do not need a picture ID or proof of citizenship. I'm sure I've missed several.