If you pretend you only need 60 watts, there is only one kind of cable.

> My dad had a USB-C cable for his android tablet. When I got him an iPad he tried using the same cable. It wouldn’t change. That makes the whole point of USB-C pointless

That wasn't because of multiple kinds of cable. That was defective equipment. They're not the same problem.

The biggest problem is that manufacturers don't follow the spec. You are supposed to physically label the cable with its capabilities, but literally nobody bothers to do so.