My dad had something called Typing Teacher on his Windows 3.1 machine. I was too young to use it as a serious tool though. Learning to type "just happened" as an accidental side effect to using the computer all day long.

Same as you, I don't remember ever struggling with learning to type or anything. I could just do it.

More recently, I switched over to a Kinesis/Moonlander keyboard, so I had to put in actual effort to relearn to type. It wasn't as easy the second time around...