Because I want stuff, and they have it, and that means they get to set the terms.
I want friends. I don't want a lot of friends, but I want a few. I want to share coffee with someone and talk, chat, BS, get another point of view. I want to help people, be part of something, and most of the people around me are NT (or at least non-autistic).
I want my kids to have friends. I want them to grow up hanging out at other kids' houses, and having other kids over (at least, if that's something they want, and it is). I want them to participate in activities, and that means I have to participate enough to facilitate. And that means I have to pass.
I want to stay married.
I want to raise my kids in peace, without stints in foster care and social workers dropping by unannounced for "wellness checks." That means I need to pass.
I don't want to be targeted. That means I need to pass.
I want to be able to hold a job someday, whether I need to or just want an income of my own. That means I need to pass.
I don't want to scare people, upset people, bother people. And everyone has their own pathologies, and then there's a**holes like Autism Speaks that make that issue even worse. If I want to live, I need to pass.
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"