How do I change the starterCharacter, via a script?

I read a thing about this. But it only talked about changing emotes.

Anyhow I’m trying to be able to change the players starter character with a script.

How would I do this

what do you mean startercharacter? the avatar of the player/character? i’ve not heard about this before

Yes the players startercharacter. This is what I would use to change the character they spawn with