Answer:
Smoking is a lifestyle choice made by the person smoking. It's bad enough that they made it illegal in a park. I mean, think about it. The smoke is going to be blown around by the wind OUTSIDE. The chances of "second-hand smoke" are pretty much zero.
All the regulations and taxes on tobacco, and other smokeables, are outrageous. As a matter of fact, those taxes on our tobacco helps pay for your public education among a lot of other things.
Why would you want to make it illegal? It's YOUR choice and YOUR choice alone to smoke. If you don't like it, don't be near it. If you do, then smoke.