In reply to many:
You don't *need* to understand how a car works to drive one properly.
You don't *need* to understand how a DVD player or an LCD TV works to enjoy watching a film using them.
You don't *need* to understand how a smartphone / tablet / laptop works to use them.
Some people like to understand how things work if they are using them, which is fair enough.
Some people get bogged down in the detail and spend all their spare time tinkering with things (be it a smartphone, PC, car, sound system...)
None of this is 'right' or 'wrong' - just different people doing things differently.
To say that you can't or wont use technologiy (or anything else for that matter) because you don't understand how it works is a bit shortsighted though.
I don't use my smartphone to control my music streamer - I could do but I don't see the benfit.
I *do* see the benfit of my smarthpone sycing all my contacts and calendar to my GMail account, so I do that.
Is any of it "important"? Depends on your definition of important. Is reading for pleasure important? To me, yes. To others I know, no it's not.
To me, wtaching football is not important. To some it's the be all and end all.
Technology is a tool. If you don't want to use it then you probably wont notice any drawback - but I suspect that in spme cases you may be missing out on a useful tool that could do the job quicker and easier than the way you currently do something.
Si