In other words, one kind of cable plus out of spec trash (but mostly benign micro-USB chargers with no chance of people attempting data transfers). The worst I've encountered with "old" USB is a vintage Nokia phone that refuses to charge from its data-only micro USB port.

With USB-C there are multiple official cable types, all with the same connectors, plus high voltages that can fry devices, plus complex protocols that are apparently too much for some manufacturers to implement safely.