Does parents get too edgy and irritated after late 40s or the children get less tolerant after 20s?

It's a bit of both. It truly depends on the relationship between them. When children become adults they want to live by their own rules and parents want them to be safe and happy (hopefully at least) so sometimes it makes it harder for each person to get along when they lead a life unlike their parents.

I think parents got to realize once a child reaches 'legal age' they must step aside and let their child(ren) make decisions on their own. If a parent has taught their child 'rules of society' (laws, respect, values, morals) their child should do well. The best gift a parent can give is being there before and after good or bad decisions, letting their child(ren) discuss problems, love them regardless.

For me, I least try to give a heads up with consequences of actions.

I think kids mind's and body's start preparing themselves for adulthood in the teens and it makes it hard for them to hear criticism and advice from parents. And as a parent is it hard to watch our children make mistakes in life that can easily be avoided...if they would listen. So there are certainly two sides to the equation.

Whether it is "too edgy and irritated" likely depends on the personality of the parent and likewise the child.

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