It's because a lot of 'travelers' stay in more populated areas (for entertainment & community) with social and economical issues.(i myself lived in a tent through covid, homeless the whole 3 years, still am.) If you go off the beaten path, North for summer, South for the winter. You'll see that people are just as generous as 10 years ago. I get a hundo kick every week. Working through this economical depression, pandemic raised the cost of living, the government isn't broken it's working just fine, that's the way it was designed to do.not to benefit humans but embrace capitalism. Cops protect the banking system not people. Building up a large homeless population in liberal & dem states, inviting immigrants to flood sanctuary cities is a plan to build a whole new poverty stricken workforce in despair of housing/shelter & sustenance to live. Grants pass ruling overturned by supreme Court to strengthen that argument & criminalize a margin of people who don't fall inline with the despair of paying high rent & cost of living increases. The government sent half a billion to other countries this year already, the truth is homelessness & helping displaced Americans isn't profitable, war is.
I see other travelers, hub cities usually with train yards & major highway junctions. Usually in vans buses etc etc.some are green ones & some are elders.
You could follow the rainbow regionals or nationals to get connected with the groups & learn about jam band touring bands, dead & co, Billy strings etc .. but it isn't everyone's thing, nor mine.
Truth is you won't find many people sticking to just the West coast or Nola, you'll see handfuls who homeguards those places. If your into heavy drinking & drugs, stick to major cities . If you dig existing for days or weeks without talking to police or being harassed, check out the Midwest, Michigan, Illinois.