How Can We Encourage People To Go Green
Let us incentivize them first, I guess

How can we encourage people to go green?
Donated 10 packs of 50 paper straws each to my favorite Coconut seller.
I tried to make him aware that these plastic straws hurt our environment in ways we can not even imagine and directly perceive.
I will check with him again after five days and refill the stock if required. The idea is to get him to adopt these paper straws by himself after a month or two of incentivizing from my own pocket.
The paper straws cost almost twice as much as the plastic ones. So, I can understand why he chose to go with the latter option.
Still, I hope in a month or two he will consider switching to paper straws.
In what other ways can we encourage him to make the switch? Need your valuable views.