These days gambling have turned to be a part of one's hobby. This is the reason we can see majority of common people who are little knowledged about technology are into gambling. Another important reason for the increased participation into gambling by the present generation is through the advertisement broadcast on the television. This doesn't have anything with the inheritance.
I agree with your first reason that technology in this generation is one of the reasons why gambling is becoming a hobby, the internet and smartphones are available to everyone who can find information can be provided, just like visiting websites and installing mobile gambling-related games and applications. But an advertisement that can be broadcast on television is vague because as far as I know, there are laws that prohibit it. It just depends on the policy of the country's ministry.
I see that in the most country advertising of gambling is illegal, also, another tragedy is that it's so easy to access in gambling online today, you need only a smartphone as you said. The part that worries me more is that
casino that doesn't apply KYC can let allow to kid under18 to submit their bets without any issue, and this is really a bad thing, from this part casino should raise their efforts to avoid it.