More and more I'm finding Linux more and more user friendly then Windows. Every since Windows started going more and more "User-Friendly".
If your starting out in Linux then I highly recommend Raspbian Linux. It is the Operating System used for the Raspberry Pis everyone has been talking about, but they have a desktop version that works amazing. If you do get Linux please secure it. Linux doesn't get all the viruses and malware that Windows gets but Mac has been a huge lie for years, THEY DO GET BUGS, VIRUSES, COLDS, WORMS and MALWARE just they patch them before many people find out about them. Colds was a joke by the way LOL :)
Unlike Windows, most Linux users use the command line interface most often then the Graphical User Interface (GUI). This is normally what most first timers see first. There are loads different commands out there with each containing many more options. It is easy to get over welled and many experts that have been working on Linux for over decades still keep learning new ones. As technology marches on older "legacy" commands are phased out and replaced with newer ones.
The second thing people see is the filesystem hierarchy are one of thing. Many people describe this as a upside down tree. For users converting from Windows a folder = directory. The top most directory is the System Root Directory or "/" . This should not be confused with root home "/root".
Next up is permissions. All files and directories have a owner, group, and permissions. If you use the ls -l command you can see owners and permissions for each file or directory. See the picture for a breakdown.