Yep my parents have that problem..... but they had planned for
it.... they get me to do it for them 
Ya lor... quite irritating because its actually extremely simple
to do... Sometime I super busy cannot make SP bill paymemt for
them, they have to do themselves...
I come back from work they complain they spent 1 to 2hrs
queueing at Singpost.... Got AXS machine only less than 200 meters
away from their house they can pay in less than 5mins... :S
My mentality right now is if they tackle how to use PC, they
confirm can tackle everything else....
But its very difficult because they really got no basic idea how
to use the PC as is don't know how to move mouse properly,
difference between right click and left click, how fast to double
click, how to undo or backspace.... They really need to go to class
one... :S