Loose leaves are more inconvenient compared to tea bags. All else equal dont expect major adoption just for yet another health scare. People in general are lazy.
Not really interested in what others do with themselves, lifestyle is a personal choice. Although things like these, if found to have an impact, should be out of reach from the general public.
I find it interesting how for many (except for things like MSG and fats) previously thought "health scares", especially regarding plastic and the likes, have been found to be detrimental to our health and still people sneer at these initial studies. Given that, I'd personally rather err on the side of caution, especially when the change is so minute to be frivolous.
If someone told to stop eating, say, pizza then that would be a whole other story. But not using plastic with hot food/beverages? Not a big deal for me.
