Do bilingual and multilingual at the same time hurt the mental health?

Hi everyone

This is my question:
Do bilingual and multilingual at the same time hurt the mental health?

I would appreciate if you could help me with some resources.

I have a trilingual daughter, aged 4. She’s fabulous! No mental health issues.

She knows which language is which and who she can speak with in English, Bavarian or German.

Yes, she makes mistakes in all of them, she’s only four. But not very many, and fewer and fewer as time goes on.

There are many countries where children grow up just fine with more than one mother tongue.