You are isolating yourself as well though. One study I read is that biases appear in full force after two stereotypes are validated.

Maybe make a linkedin, since that has nothing to do with your age, just so you have an answer that doesn't alienate you, and people might ignore your age for longer.

Then I tell people that I did use them years ago, until I learned about the problem where I was the product being sold, and that anyone who still uses those services is just voluntarily making themselves one of the herd of cattle to be bought, sold, culled, or whatever.

That usually shuts them up.