well, the number of Avast! users is still few compared to the internet population
. In my opinion, quite a stupid way to scam ppl with that method (no offence)
secondly, ppl should educate themselves that ethical companies should never phone ppl and more importantly, ask for anything personal (in this case, access to ur computer) when there is no form of verification for the other party as the appropriate authority.
also, with Avast! remote control, the person who allows control of his computer to another person is able to terminate the control any time he feels something is suspicious.
lastly, the likelyhood that ppl falling to such scams is much much smaller than the number of ppl who will gain from legitimate help from their more technical friends, or even helpful forum members in here