I've always preferred "why". If they were a family, Why would be the cute little one who's so curious about everything, and comes up with wildest explanations for stuff...
• previously ChildOfNowhere - they/them - literary fantasy with a fairytale flavour
“Rise like Lions after slumber
In unvanquishable number.
Shake your chains to earth like dew
Which in sleep had fallen on you—
Ye are many—they are few.” — Mary Shelly