This is why you show them. I did. And they were fine with doing it.

But if someone is like my brain damaged sister (who drinks their lives away) and is incapable of grasping any information, I make a simple script with just a single command (that I put in a folder called 'scripts' under root) to run at a specific time in the background to do the updating (Typically during hours of non use). The only time it really has to be rebooted is when a new kernel is installed. Well, I let the user take care of that whenever they reboot, or shutdown their machine.

In fact, to make life easier, that is what I do for all of my household computers so that I don't have to think about it (because I am lazy).

Ever think of doing that?