I already have a MacBook with the profiles of my wife and I on it as users. I am thinking of buying a MacBook for the children and would want to have my profile on it as administrator along with their profiles. Is it possible to do this without all the files associated with my profile automatically downloading from iCloud onto the new Mac? Thanks.
Create a new Apple ID and password and sign in with a new Mac , you will be the administrator of the Mac and nothing will sync from your old account , further in users and groups , the family ( wife and children can add their admin / guest user account what ever they like ) see this article https://support.apple.com/en-in/guide/mac-help/mtusr001/mac
You can do that by creating an admin account on the new computer. Before you sign into System Preferences/iCloud, make sure all items are not checked so no data will sync to the computer. Then sign in.
Admin Profile on MacBook Pro
