S.
I do have experience with that.
This kind of kid was me!
My mom struggled with that and this drove both of us crazy. Thanks to my stubborness she gave up at some point and I could do WHATEVER I WANTED.
Let you kid do what she wants with the issue. If she wants to roll tights down a little -- let her do it, no matter what you think about it. Explain that no tights is NOT AN OPTIN, the rest is whatever she wants. She will find solution, believe me. Also her solution will be hers only and no one else to blaim for it :-))
And also try various brands of tights. For my 1 yo I see that tights are TOO TIGHT and I just cut top portion of it so that she can breath in them :-))
Good luck with that!