One of the things that shocks Grandparents today is how their children can believe ridiculous things which their own existence disproves.
For example, the grands vaccinated their children. They survived. Yet, some will be ‘anti-vaxxers’ because some charlatan claimed it ’causes’ autism.
The children don’t get the reality that there were very few autistic children when they were growing up.
The children might have been free range, yet lock their own in house prisons.
To mention the discordance between what the grandparents did and what the child is doing to the grandchildren can not be done.
Not unless one is looking for war.