Remove Administrator Function from an Account

Never tried myself. Log in to daughter's account and change it to standard account. It should work as she is an Admin account. I stand to be corrected by more learned Contributors here - that I accept.

• Administrator: An administrator can add and manage other users, install apps, and change settings. The new user you create when you first set up your Mac is an administrator. Your Mac can have multiple administrators. You can create new ones, and convert standard users to administrators. Don’t set up automatic login for an administrator. If you do, someone could simply restart your Mac and gain access with administrator privileges. To keep your Mac secure, don’t share administrator names and passwords.

Is there " NOW " more than one Admin Account on this computer ?

https://support.apple.com/en-ca/guide/mac-help/mtusr001/mac

Welcome and thank you too.