How long has it been since a mass casualty shooting? I'd rather we live in a world where those don't happen, and what we've been doing so far hasn't worked. So while your advice works for some people, unfortunately it doesn't work for everybody. For someone with horribly low esteem/other problems that they've given up, giving them tools to help them get out of that hole so they are able to go out and make friends IRL seems like a win in my book.