My brother lives in Argentina and he mentioned how impossible it is to find original/official chargers for his iPad and S5 phones. The ones he was able to purchase were utter garbage to the point his iPad stayed unusable for a few months until I got some chargers from the US.
As someone else pointed out, some countries do not have the good or even average stuff sold in the aftermarket.
That sounds, really, really horrible.
I guess that if there is very little market, for the more expensive stuff. Then only the really cheap (and nasty) stuff, gets sold on the market.
Part of the issue, is that things like mobile phones, and Apple products, are seen as "MUST HAVE" items, by the younger generations. So they will obtain such things, even if the country can't really afford such items, and even if they have been sold, fake/dangerous, poor quality items.
I guess part of it, is the modern, globalised world we live in today.
In the 1900 .. 1960's, people lived perfectly well without, many of the modern things, like mobile phones, microwave ovens, and even TVs (especially colour ones), before the 1970s (most people around the world).
In the UK recently, I was disappointed, to see a person, walking along, continually looking at their mobile phone. Then stopping for a few minutes and (apparently), sending texts. Why can't they just walk to where they are going, and leave the phone alone.
But yes, your relatives (and friends), should be able, to buy reasonable quality and safe, chargers in Argentina. The fact they couldn't, is disappointing.