Do you remember when Sun Chips changed their chip bag material to a more environmentally friendly compostable material? People lost their minds. Why? Because the bag crinkled a lot. All of the boring late night talk shows made fun of Sun Chips bags. So, they switched it back to the old bags.
Moral of the story is that people don’t care if something is better for the environment if it inconveniences them now. If everything was in cans people would cry because they can’t close them or whatever. In fact, many items that were previously sold in cans are now plastic. Also, money… Cheaper to wrap water in plastic.
You can still buy Coca-cola in glass bottles if you look hard enough. But they are pricey.