Do you see such elderly people in your country? Or is it only in Africa? Is the younger ones play gamble more than the elders?
It's also the same in my country but I don't have such data to say which is more and less but I'd only say that I see both in all ages that does gambles. A young ones or a young professional at the right age that becomes addicted in gambling and having problems on how they'd spend their money well and to keep themselves in intact budget. And the same goes for the elderly, they're professionals, have got a job and family but also, they're experiencing problems when there are times that they spend 1/4 to half and even full amount of their salaries.
In my opinion, I believe young gambler are more than the aged gamblers, that is if the age range for separating the young from the old is 50 year, then it's obvious we'll find more of the young ones gambling offline and online. Most of the old gamblers gamble more for fun sake and to relieve their self from stress and all of that, but majority of addiction gamblers are the young ones. From the house games I've been to the young who are desperate in making money without jobs usually get addicted. The old are usually assumed to be more experienced in making decisions than the young.