content: No you don't.  You want Mint for sure.  Ubuntu's forums are total jerks to n00bs, and also the interface is garbage. https://youtu.be/hQzD5-kU5H8 But you don't want to run off of a Flash Drive.  It's slow and you're not getting the real experience.  Get a cheap SSD and do a fresh install.  Then you can switch right back if you get into trouble.  I strongly recommend Mint Mate version.