I discovered tights by accident. I wanted thin long johns, but those do not exist, there are only the thick thermals ones. Long johns are good to keep you warm in harsh winters, but they are too thick for skinny jeans, to say nothing about “spray on” jeans.
So when I was abroad and needed warm and long underwear (long johns), I decided to try women’s black thick tights rather. The thick tights were still thinner than thermal long johns that meant they felt more comfortable when worn over tight jeans. So I bought a pair to try. They worked out perfectly. I could wear the tights with skinny jeans without experiencing the bulkiness of the fabric as I did with long johns.
What I did not anticipate is that I would love the tights so much that I would start wearing them with shorts and other things. I loved them so much that I bought more pairs because they immediately increased my wardrobe because I could pair them with all kinds of short pants. Now I always have multiple pairs of tights, and I wear them mostly in the winter.