Agree.

Put another way:
1. Incoming water -deal with sediments, rust, mud, etc. - otherwise washing clothes get new color
Emphasis should be here. Two school of thought - filter everything even chlorine or just filter the sediments, rust, mud only.
My take is as long as you're using appliance sensitive to sediments like water pump eg washing machine (they have one) it is needed.
In old houses, it is also good to have one near washing machine esp the fabric 10-0.5 micron type because sometimes the GI pipe inside the home
could be accumulating rust sediments.
My take is to filter out sediment, rust, mud at entry/incoming. But leave the chlorine as it is important to keep water tank clean from algae or mold
and other stuff.

2. Point of use water - deal with whatever that needs to be dealt with
Shower, bathing - shower filter - maybe less emphasis cos chlorine not as strong but can still smell. Still, chlorine free water is better for hair
Drinking - many to choose from so this one up to personal preference. Apart from the many choices, there are also ppl who drink distilled water.
Cooking - this one like drinking also but I tend to lean more to cutting out chlorine from washing vege etc. Somehow from what I read, they do absorb. Even washing rice before cooking, my wife use chlorine filtered water.