Adult children go back home with depression, breakdowns, financial problems etc. And they should expect their parents to be there for them - If they’re not and they could be then they don’t deserve to be parents
I do understand what you're saying above - but there's also the counter-argument that once children are adults, they should try to resolve their own problems, rather than asking older, (possibly elderly and unwell) parents, to help them out. Unless it's truly desperate, like they're about to be made homeless.
I had a bad episode with anxiety last year, close to a breakdown. I didn't tell my elderly Dad/DSM until I was having treatment and feeling better. It would worry them too much. I didn't even tell DH how bad I felt, but said I needed help and made a doctor's appointment. Again, I didn't want to cause him worry and stress.
Same when DH's job was in jeopardy over the summer. Just told everyone that work was stressful at the mo and changed the subject.
We thought that was the most caring approach, not burdening older adults with our problems. Do other adults share everything with their parents?