Sun Dried Clothes

@CrazyMusicLover

Maybe you get different sun rays, all of our clothes were soft and almost wrinkle free. Then maybe it's the material you use if you're still do it these days, back then everything was pure cotton, no blending or mixture of fabrics synthetic or otherwise.

@Charity It's problem mostly with towels but also cotton bed sheets and T-shirts. Synthetic materials like lycra or viscose never get hard. Wrinkle free yes but not soft, at least not immediately, more like stiff.
Also, synthetic elastic materials shouldn't be exposed to strong direct sunlight because they might lose elasticity.

@CrazyMusicLover The days that I was speaking of there was no blending of fabrics everything was 100% pure cotton.

All of our towels were soft, our sheets was soft, our clothes were soft that we hung on the line, except for those that we put starch and fabric softener hadn't been invented.

Maybe it's the process used to make fabrics these days, the process has significantly changed with the technology of today.

https://toweltrend.com/how-are-towels-made/

https://www.haiyingtextile.com/News_details/65.html#:~:text=In%20a%20significant%20development%20for%20the%20textile,ensuring%20higher%20quality%20standards%20in%20towel%20manufacturing

maybe it's the detergent

https://turkishtowelcompany.com/blog/why-do-towels-get-hard/#:~:text=The%20Science%20Behind%20Stiff%20Towels,making%20the%20fibers%20more%20brittle.

maybe it's the quality, all the glitters ain't gold

https://mikhamex.com/how-to-distinguish-good-towels/

could be the water

https://flandb.com/blogs/by-flandb/is-hard-water-ruining-your-towels