the problem is with your previous operating system, not ours. I wish I could flip the mac laptop to not use that command key.
Apple Menu -> System Preferences -> Keyboard -> Modifier Keys
The only pain is when I'm in a terminal, the ctrl key is different. I use model-m style keyboards.
Which I find quite reasonable, personally. If I want to copy text, it's Command-C everywhere in the system, even in the terminal–no Command-Shift-C or similar "hack". If I want to send a SIGINT to a program it's Control-C, as it should be.