Apple Watch Contacts for Child

I set up my child’s Apple Watch through family setup. She has her own Apple ID and uses it on the watch and on her iPad. She has contacts on the iPad (friends and group texts) that I don’t want her to be able to access on the watch. If I look at the allowed contacts on her watch these numbers/addresses aren’t on the list. However, she will still receive an alert from Messages on her watch from these contacts (and other spam numbers as well). The system blocks her from reading the text if she clicks on it but she still gets an alert that the message has come in. The point of limiting the contacts on the watch is not only so she can’t read the texts but also so she isn’t interrupted with unimportant text messages. Is there a way to have separate allowed contacts on the iPad and the watch and/or a way to only allow alerts on the watch from specific contacts?