To everyone blaming consumers: I encourage you to take a solution driven mindset here. Consumers won't change. There's far too many people, some of which don't care about the environment. Tight regulations and additional tax on single use plastics can reduce plastic waste.
Sorry, but this is absolutely not true. I routinely travel between Liverpool and Zürich, you can take a guess which one looks like a pristine modern city and which one looks like a junkyard/dump. Let me tell you, it's not just because there are more bins in one of those cities.