I LOVE THIS TREND!!!!! I have a rose gold sequined skirt that is my new most favorite thing in the world!
I think it depends on how it's worn, how tight and short, etc. but it can be done very tastefully. I wear mine with tights and a loose fitting tee or sweater. (I'm 28, for reference, but look younger)
I also think this is one of those things where if you are questioning whether or not you can wear it, you aren't going to pull it off... you need to be 110% confident and rock it.
Search sequin skirt on pinterest... people literally have whole boards dedicated to this trend that might give you some ideas...