The point about having a dryer is nt just abt drying clothes. Is about the level of CONTROL that you have over time during durations of ultra large loads.
but necessary or not, up to you. I can say its necessary, but a lot of people will say that I am kinda cuckoo.
Apart from control, there's also sunlight that fades the clothes when it's hanged out to dry.
Not to mention the contaminants that attaches to the washed clothes, dust particles, insects, above neighbours hanging out their marinated meat or smokers donating their smoke particles.
On the damage to clothes, only a heat pump can address it cos a normal vented or condenser dryer uses high heat to dry the clothes. So either shrink or fade.
Solution is Heat Pump dryers but they are expensive, energy saving, although the savings usually don't justify the higher price.