Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I’m the parent (and Adult leader) for my daughter.
I have gone through all posted information on how to invite the scout to link with their own account and it does not help. There is no option to send a link to the scout in any iteration of Edit Profile or Edit Extended Information. All help topics are at least 2-3 years old.
I searched “linking or inviting scout in scoutbook” and got a handful of posts with dates of 2023 and earlier. I can try to look them up again if you need something more specific.