If qubes is the first Linux distro you ever see, yeah that’s going to be a steep learning curve. More to the point I think the cybersecurity concepts is missing from them grasping how and why to use it. 

You spend hours on FB and Insta? Cool, keep doing it. Set up a qube just for that with only a web browser and a firewall that only connects to those two sites. A lot of attack surface is gone instead of letting it all hang out doing that in the same browser as your banking and email. 

That I think is the bigger knowledge gap rather than the UI of qubes.