That's still just anecdote. I have USB-C for one pair of headphones, two pairs of earbuds, a bedside light/charger, and of course my phone. But I don't assume my experience is universal. I look at data, as should you, and it does seem that there are indeed billions of devices out there using USB-C.

https://epsnews.com/2017/12/28/usb-type-c-adoption-keeps-gro...

Looks like phones alone account for ~3B in a single year, so no, it's not just laptops. Even if you exclude those, the "consumer electronics" segment looks like it'll go over 1B/year pretty soon. Get out of your bubble.