Two things hold me back:
1. Seems purchasing a house starts at around 1 million usd, even somewhere in the middle of nowhere 2. It's so safe and organised, my kiddos would grow up too untroubled and carefree :D !
First of all, why do you need to buy, or even live in a house? This is Europe. You can rent, invest the rest and you don't need 5 bathrooms or a garage for two cars, much less a huge ugly green field between your house and your neighbours.
2nd. Why do you want your kids to be afraid of living on their own earlier in life? It's much more like the opposite, if you want your kids to have a terrible mental state, keep them locked at home and drive them everywhere (typically to Mc Donalds or Shopping Malls, both very artificial places).
If you want your kid to mature and not be forever a child, you better let them have the freedom to go to school alone, take buses and trains.
Just look how in the US there are Americans in their 30s that can only go anywhere by car with a GPS and are unable to walk by foot or deal with people of different backgrounds, that might speak different languages.
I find it astonishing when I see them here in Europe, they barely know how to look at a train table or do very simple tasks and consistently need assistance or attention. And can only communicate in English and fail to even deal with people in a situation that they don't speak their language or share their same cultural values.