Absolutely agree with this.
We 'helicopter parent' because the media feeds us stories about what will happen if we do not. And this anxiety rubs off onto our children. By doing this we teach them that the world is scary and they should be on high alert. I'm as guilty of this as anyone.
Truly self confident children will usually behave better, as they are not trying to impress anyone, or prove anything, and their harshest judge is themself, they set themself goals which are important to them and they work to acheive them.
In our village there are 2 primary schools. 1 is very strict, results focused, reportedly do very little about bullying and tell children to 'toughen up' if they report it.
The other puts a really strong focus on the 'whole child', with children learning to swim, garden, drama, music, yoga and focus on kindness with no tolerance of bullying.
I lead a Brownies group, and I can tell almost immediately which school each girl comes from. Ones from the first school are hyper, giggly, struggle to work with other children in a collaborative way, argue lots and are reluctant to take 'safe risks' like climbing,rafting etc.
The 2nd group communicate calmly, make good eye contact, can focus, work well in a team and have courage to take risks.
When it came time to pick a school for mine, the choice was clear.
I think part of the issue is that we push children into academic study too early, expecting them to focus for long periods when their brains just aren't ready. Schools should start with building up the skills to learn, to think, to 'be brave' 'be kind'. And yes, these skills should obviously be taught at home too.