Everyone should do this, honestly. I am currently renting, but I previously owned a home in another state. One of the first things I did after buying my previous house was a whole-home filtration system. The cost isn't that high if you already have a water softener or similar plumbed in off the mains, as the filter system itself isn't the expensive part, it's the plumbing work.

Even in cities with good water, it makes sense to filter heavily and remineralize at home. This ended up helping me in myriads of ways due to natural disasters causing boil orders, finding out about chemical spills in the area that affected water supplies, etc. No worries at my home, thanks to significant filtration.