I remain to be convinced that tights are the solution. Back in the late 80s we had one of those nasty brillopad pitches installed. Dreadful experience. It was mainly for hockey, but did get used for football. As my tackling technique involved sliding to tackle, I took the skin of my right knee within 5 minutes of my first game. Second game, I wore tracky bottoms to protect my skin.
But as that was made of polyester, it melted on the slide tackle, making an even worse mess of my knee. The only solution was padded knee supports.
While the pitches way be different now, the basic physics of man made fibres and heat caused by friction have not changed. So tights may not be the solution that they’re believed to be.