> that just seems asking for confusion
USB is just like HDMI in that respect - why label when you can confuse.
For reasons unknown, the sensible approach adopted decades back for the clear labelling of RJ45 Cat cables has been discarded with HDMI and USB.
Likewise the power adaptors also 'hide' their output specifications (a problem not unique to USB, I have similar problems with 12v .adaptors typically used on home routers, where it is a little more important to match adapter to equipment).
To keep my life simple, I've standardised on power adaptors, previously standardising on multi-port chargers that could deliver 5V 2.4A concurrently to all ports with cables to match. With the move to USB-C I've standardised on Apple's iPad 20W adaptors (5V 3A / 9V 2.22A) and cables. My thinking is if the device can't handle these power sources, it is the device manufacturer at fault, not the user.
However, with more devices being capable of drawing 30W, it seems my next standard will be a USB-C PD 3.0 specified charger.
So that drawer of miscellaneous chargers has been replaced by a drawer of low-power USB chargers...