Differential treatment of computers

In our family I would like the computers that are used by the adults to be able to log in all the computers in the house with teamviewer however the computers used by children to onoly be able to log into computers of the other children in the house. Some of the children have for example more than one computer eg a desktop and a laptop. At the moment it looks like if you give unnattended access that means everyone under your email address account can log on. It is not preferred but does it mean that we have to create two accounts. one which can log into both groups and one that can just log into its own group.