My daughter told me she has ADHD, that's why she starts things and cant finish. Not sure what to do with this information. She diagnosed herself. Apparently my younger son has it too, according to her and my older son as well. Im surrounded.
self-diagnosis is notoriously unreliable. I have self-ruled out a lot of things that I was later diagnosed with. There's also plenty of data that says we humans deceive ourselves very easily without intending to, nor recognizing that, we've done so.
Diagnosing oneself with a neurodivergent condition rather than discussing one's symptoms with a licensed clinician also heaps stigma on those who (like me) were dragged kicking and screaming into accepting that I had ADHD and later OCD. What happens is that when "everyone" claims to have ADHD then the people who really do need accommodation to run their everyday life face a steeper climb trying to attain it. It perpetuates the false assumption among neurotypical and formally diagnosed individuals that ADHD is just an excuse for being lazy and not getting your shit together.
There's also the problem of when people get a false positive in their DIY clinic, it confuses people who legitimately are affected. ADHD is a brain style, and I know when i'm talking to someone else who has it vs someone who doesn't. If someone thinks and declares that they have ADHD, but in fact are neurotypical in that trait, then I end up expecting empathy and understanding from someone who really does not understand. If it sounds like I'm bitter, that's because I am.
I am not saying whether anyone you know definitely does or does not have ADHD, but if they just looked at a list of symptoms and said, yup - that's me... then that should be the start of a conversation with a provider, not the conclusion.
Sorry, raw nerve.

In short, if they really have ADHD they need to be seeking treatment before expecting people around them to change behavior to accommodate them.