~
Well I can recall that saying of Jose Rizal back when people here in our country are still somehow showing the traditional manners, but shit has changed a lot even for kids. At the age of around 8 y/o, you can see most of them doing TikTok vids already. That already made me lost my belief that youth, at least in our country, is still a sign of hope.
About the scams happening, surely even kids are purely going to be easily scammed by them although they're not just that aware yet about the usage of cryptos.
You are right, for sure, that was still relevant at that time, but now it is very difficult as we know that most of the youth are the ones who like creating chaos. We see a lot of violent youth that are involved in crimes, some of them without remorse. But again, they are really the future because, without them, there are no innovations because most of those old people have already died and they are the ones continuing them.
Complaining about the young is a common theme all over history - there are references to the Ancient Greek philosophers complaining about this same topic. But doing so in the context of violence and gambling is actually a self-critic. The young mostly learn of what they see and are part of a model of society that we have created. This is not their fault (not completely for sure), since we (I am old enough) are the ones setting the path and context.