I don't think these things are luxury at all, but can be packaged as luxury. For example, you can find quiet parks in most metro areas or you can go to a retreat in a resort in the mountains.

For years I've been buying only 98%+ natural fiber clothing. I can still find t-shirts for about $10, but I do have to spend time examining the tag on clothes. I also noticed that Nordstrom's app can filter by fabric type, but the clothes there are sold at a premium.