yeah, bu most folks aren't charging 3x a day. they charge once a day or two days.
and nobody is keeping phones for more than 2-3 years.
fast charging's convenience far outways it's cost. i have a 3 year old phone and i've lost 30%+ capacity, but it means shit because I can charge the phone up to 90% in like 20m, so now I Just charge once a day instead of every two.