When you are trying to resolve an issue where someone else made an error, put the focus on the error and not the person. Example of this: Instead of saying, “You didn’t send the attachment,” I say, “The attachment didn’t come through, please try sending it again.”
Very true for "basic" life lessons, things that don't change very much over time. It's not a generation thing, just a matter of people having lived long enough to gain a lot of experience in various topics.
BUT an absolute disaster, when it comes to things that change over time. The faster and more fundamental things change, the worse would be any advice from people getting their experience before the changed.
So, basically: Learn to differ what topics you can get really helpful advice from older people, and what things you'd better not ask them.
or but washing machine in bathroom....