I prefer an alternative: $1000 minimum tickets for littering.
Look, plastic water bottles have one major thing going for them: when you go on a road trip, you can buy 36 of them for about $4. Stick them in your car. Drive everywhere you want, hike as far as you want, and you will probably be fine on water (if you hike far enough that you're not, you probably know to have a water filtration system and a camelpack.) Sure, camelpacks are better, but most people don't do enough to necessitate one. Real water bottles are great until you realize you need more than a few. And nobody is stopping plastic bottles from being reused.