Yes it's infuriating to see someone you care about fall for an obvious scam, yet... I don't know... If it's his money and it makes him happy, or a little less sad, a little less lonely... Why not...
You'd give away all your money to feel a little bit less sad?
Because the same techniques are used in the media and politics to get believe and vote for things that aren't true, by people who will not just scam money from the victims in many different ways, but do far worse things to other innocents.
We don't need voter id or age verification laws, we need laws that make any form of deliberate online deception for profit a crime punishable by jail time.