self-selection

noun4

1. •
   Selecting oneself for something.
2. •
   A form of nonprobability sampling bias in which individuals select themselves into a group.
3. •
   Selecting something for oneself.

   • “I think some of you might decide that this place isn’t for you, and that self-selection is OK with me,” Mr. Zuckerberg said. — 2022
4. •
   An item selected by oneself.