The way of drying laundry

In Japan, putting laundry outside is universal because it's considered to be useful means of disinfection through exposed sunlight. However, in the USA, apparently using a dryer is common.Once I knew, I checked out on internet why they do that.They said that putting laundry outside is regarded as not being able to buy a dryer caused by poverty, and many people look down on(disrespect) them or see them as rude. Is that true?

I don't think Americans look down on someone who hangs their clothes outside, it's just more common to have a dryer. I think occurred out of necessity during cold winters, although some parts of the U.S. have warm winters, but not most of the country.