I read the following article:
and as a beginner user I am nervous. Once I figure out how to connect both Mac Mini's to the same network, how reliable is Migration Assistant?
The second option with the Thunderbolt Cable seems easier, but I read that the 2012 Mac Mini does not use a Thunderbolt 3 cable, but an older version, so then would I have to buy an adapter, in addition to the Thunderbolt 3 cable?
I am most concerned about transferring my emails from Apple Mail over to the new Mac Mini. What about putting files and exported mailboxes on a USB flash drive and then connecting the USB Flash Drive to the new Mac mini? Is that an alternative and efficient way to transfer files?
Welcome to Mac mini Getting Started Guide
Mac mini Getting Started provides everything you need to quickly set up and start using your new Mac mini.
support.apple.com
and as a beginner user I am nervous. Once I figure out how to connect both Mac Mini's to the same network, how reliable is Migration Assistant?
The second option with the Thunderbolt Cable seems easier, but I read that the 2012 Mac Mini does not use a Thunderbolt 3 cable, but an older version, so then would I have to buy an adapter, in addition to the Thunderbolt 3 cable?
I am most concerned about transferring my emails from Apple Mail over to the new Mac Mini. What about putting files and exported mailboxes on a USB flash drive and then connecting the USB Flash Drive to the new Mac mini? Is that an alternative and efficient way to transfer files?