Just pull the hard drive out of the windows computer, and clone it to a usb keychain in front of them. In all seriousness. Windows is a lot easier to use, but Linux is way more productive. It’s so hard to go from Linux to windows though. It’s far easier to learn Linux first. Mac falls right into line. Windows is just out there. If they can use Linux than they can use anything. You don’t even need terminal in a mac anymore. Though it’s there. Chrome app and unity launcher allows a lot of android apps to install to desktop in debian.