My Facebook feed is full of my friends kids doing stuff, they’re all of an age with my son (6). The little boys do a wide variety of stuff, there’s no real overriding theme, it’s running, climbing, painting, fighting, cycling, swimming, reading, Lego, jigsaws, music, trains – all sorts.
The little girls? Frozen. The vast majority of updates from my friends about their female children aged 2-8 or so are related to that film and nothing else. Dressing up and/or singing the songs or just watching it on screen. It’s a bit weird, frankly. I’m sure it’s a good film (I’ve not seen it myself), but the universal obsession is slightly alarming and offputting.