Congratulation! But to be serious: Almost all tools allow this. I can change every hotkey, menus and palettes in Lightwave. BUT: I will never do this. I rather learn the existing ones. The reason is easy. I often follow existing tutorials and it would be a nightmare if they talk to press Shift+F and I have to check what that means for my own custom set of hotkeys.

But I work parallel in tools like ZBrush, Lightwave, Bodypaint, Milkshape and Fragmotion. They all have different hotkeys. The same counts for MS Word vs. OpenOffice. But most users can deal with this. It is just a little training.

I have to learn so much Karate techniques, Katas and Japanese words for my other hobby. This fits in my good old brain. So I am sure a few hotkeys will also fit into your younger one