I don't think any of those are direct causes, the day to day realities of the world trend harsher as we look back at older generations.
I will grant that they are indirect causes, in that the way adults process the issues among themselves inadvertently create the society that the young are growing up in.
Whether things are causes, consequences or side-effects is overly-simplistic, linear thinking that isn’t helpful when there are many real pains. Don’t bikeshed on labels or categories, please.
I will grant that they are indirect causes, in that the way adults process the issues among themselves inadvertently create the society that the young are growing up in.