Lol, I was you 10 years ago. For context I'm Malaysian and we only drink water that is first filtered and then boiled. When eating outside we generally avoid iced drinks unless it's a reputable shop.
Then I moved to Australia and reacted with utter horror to see my then-bf drink straight from the tap. I was like wtf you're going to get parasites! Spit it out!
Now I drink water like Aussies and my kid refills her bottle from the tap too. My parents, when they visit, still boil water to drink but they've at least stopped thinking we're trying to murder their grandchild.
I'm 40 and I love it, I've been doing pandemic-chic for a decade now and I'm glad I'm now finally considered trendy instead of sloppy.
I'll never give up my skinny jeans tho.