This is a mostly American perspective that I find endlessly amusing. I only have a handful of clothing items that say that tumble drying is fine on the tag, and most of my clothing is very casual wear (t-shirts, jeans, sports clothing). Dryers eat up clothing like it's nobody's business. Plus, electricity costs money while the sun is free. And while yes, the time to hang laundry has value, it takes 10 minutes to hang a load. If it rains, I hang the clothes indoors with a dehumidifier which is cheaper to run than a dryer and dries clothes in a matter of a couple of hours.