Earlier quoted context omitted.
I don’t own a single usbc device, I have lightning on my phone, and tons of microusb-usbA devices/cables “Billions” sounds like a HN bubble statement.
6 billion smartphone subscriptions worldwide (according to https://www.statista.com/statistics/330695/number-of-smartph... ), Android is about 70% ( https://gs.statcounter.com/os-market-share/mobile/worldwide ), and has been predominantly USB C for the past 5 years or so (eg Samsung S7, released in 2016, was their first phone with USB-C afaics). I don't think it's that far fetched.
One of the big reasons for me getting the OP2 was the port and I'm still using it (with LineageOS). I'm sure I would have upgraded long ago if it didn't have a USB-C port as that's what I've standardised on for all my portable electronics.