Tan lines are a “problem” for me, not a “thing.”
I play pickleball outside multiple times per week, and I ride my bike outside multiple times per week.
Sooo… I wind up with a tan on about the bottom four inches of above my knees, and NO tan on my feet, because I have to wear shoes for both of those. I generally wear crew neck tanks or tees, so I wind up with tan lines from those also, and when I want to wear something with a v-neck it looks funny because my chest is pasty white. I do wear sunscreen, but still get tan.
My face is usually “porcelain white,” because even at the beach I use tons of sunscreen and wear a hat when I’m playing pickleball.