[Quoth]

For 5V charging up to 2A and data, USB-C isn't better. It's inordinately complex and does a lot of stuff eReaders, mice, keyboards, Memory sticks and other things don't need.

The ONLY use case is laptops where the maker wants to ditch a dedicated charging port and ditch a dedicated video port. Both backward steps for the user. Also higher performance laptops can't use USB-C charging as the 100W isn't enough. It may not even be enough if there are downstream devices charging at 20W each on a regular laptop.

Chipmakers think it's too complicated and it adds pointless expense to eReaders, mice, keyboards, Memory sticks, USB-Serial adaptors and many other things.

It's a marketing concept, not a sensible need.

USB-C is USB + an extra data channel, a video channel and charging up to 20V @ 5V rather than one data channel and 5V charging/power up to 2A. It's different, or complimentary, there is no sense in which it's superior.