That restores Windows 10 as it was when installed, before any user accounts have been created. When the new user boots the PC first time, it's like a new PC waiting the initial user account to be created.
If you want to keep all installed software and only remove all signs of your personal user account, type or copy this to the Run dialog (WIN +R) and hit Enter:
%windir%\system32\sysprep\sysprep.exe /audit /reboot
That command restarts Windows in so called Audit Mode, automatically signing in with the built-in admin account. When signed in you will see this dialog at middle of the desktop:
Let it stay open. Go to Settings App > Accounts > Family & other people and remove your user account (tutorial: User Account - Delete in Windows 10 - Windows 10 Forums).
Close the Settings App. Now click OK in the Sysprep dialog shown above in screenshot. Windows will now run the Sysprep and restart in normal new PC Welcome / OOBE mode, without any user accounts but all software still intact. You can now go through the normal setup dialogs, creating a new user account for your daughter. Windows will be as after a clean install, only difference being that all software is already installed.
Another option: if you want to keep all installed software, remove your user account and data but let your daughter to set up the PC by herself, let her decide if she wants to setup a local or MS account and which username to use, before clicking OK in the Sysprep dialog as told above change the Shutdown Options to Shutdown, then click OK:
Windows will now prepare the PC for Welcome / OOBE and shutdown. When it will be started next time, it goes through the normal OOBE setup phase, asking for the initial user to be created.