If they’re like some of my family, they see the lived-in familiarity of their youth as “quirky” in contrast to the unfamiliarity of today’s youth which is “bizarre”. They eased into the bizareness of being a child over time, whereas they are getting dropped in the deep end when they encounter children now.
It’s all silly. Everyone is quirky and weird on some level. Some are just more open and honest about it than others and successive generations have been pushing more to be themselves.