Athough some airguns are perfectly capable of killing small game, others are not. Thera are so many different models and power levels available, it would be hard to come up with reasonable regulations and enforcement. Margin for error is also less with airguns.
just been thinking of it. I also think it would be more of a challenge. getting in close and making a good shot. I know most will not. some take airguning seriously. some good airguns can get expensive and some would like to use them for more then just shooting tin cans in the yard. not to mention ammo is very cheap.
airguns can be regulated just like bows and crossbows. they have minimum draw weights, cutting edge. you don't use 50lb crossbow pistol to hunt deer with do you? I believe airguns can be regulated very easy. minimum fps, minimum ftlb of energy.airguns have come a long way since red ryder bb guns.
]I have a benjamin 392 22cal pumper, when I was a kid in AZ I killed a fox with it and a lot of rabbits and birds over the summers with my dad. A gun like that can easily take a squirell or rabbit but unless they offered an advantage such as 50y saftey zone or somthing I wouldnt be intrested. Not that I wouldnt ry it couple time localy I like my guns too much not to choose them.
Although I do still take that gun out for some can shooting more oftwn tgen not, I like airguns. If you want to hunt small game with one you can buy a OH liscence they allow them. I live only 25mi from the border and have thought about it, aswell I could use my mini14 for coyotes too. who knows maby somday I will.