Why do plastic cups and bowls air dry far slower than glass dishes?

I washed a bunch of plastic cups and put them in the dish drainer. I went back to put them in the cabinet and they are still wet. I’ve noticed when I wash regular ceramic? plates they are dry within a minute or two, but the plastic plates and bowls the kids eat from stay wet for hours, if I just let them sit in the drainer. Why is this? It seems weird to me.