I think you'll find studies disagree with you.

There's not much you can do apart from providing a decent baseline and getting lucky. Which, on the one hand, is profoundly relaxing; on the other, it's pretty depressing and scary.

Social science “studies” are almost all complete garbage. Non reproducible and disproven constantly.

Social scientists are LARPing as actual scientists. There is no rigor. Most people in the hard sciences have little regard or respect for their work.

Arguing that parents play little/no role in the development of children is peak academic nonsense.

Studies like what you’re citing only give comfort to the parents who would rather live life looking at their phones than parent their children.