If decent water testing kits were widely available...or even water analyzers on the outlets, more people might be more confident drinking tap water. But I suppose there isn't much incentive to push people in that direction.
I suspect the opposite. Especially if those testing kits checked for lead, PFAS, and pesticides. Millions of people are blissfully unaware of what's in their water. Many people are selecting bottled water on taste though, not health concerns. I've been to places in the US where the water not only tasted terrible, it smelled terrible.
