I dated someone younger than me for a couple months. She kept asking me if I knew of “such and such” or “did you know they make that this way” or “have you ever heard this band from the 90’s” or “did you know about this”. Essentially she was still discovering a lot of things in life that I already well aware of, then I had the realization she was way too young for me. Plus she was horrible at sex, way too inexperienced