I'm 48 and was diagnosed with ADHD just over a month ago.
Yes, there are a lot of misconceptions about ADHD. And some of the people with the misconceptions like to hang on very hard to said misconceptions.
Which I am mostly letting wash over me, because all I can do at this stage is focus on reducing the ADHD's impact on my life and contentment. I have no spare time/energy to take on those who will not change their beliefs, despite any quality evidence proffered.
Fuck 'em. I don't need their approval to work on establishing stratagies that make my life better. Anybody who opines in my presence that it's made up nonsense is entitled to that dead wrong opinion. But they aren't entitled to both that tightly held opinion AND being in my "warm and close" circle. They are banished to no Christmas card/no invite/just a breezy "hi" as we pass in the street status only.
The family/friends that matters to me are the ones who are buying me special pajamas for Xmas. (but with pink bottoms)
They have been warm, supportive and made me laugh like a drain about it.
Getting diagnosed was the biggest relief ever. Anybody who isn't on board with me feeling better about life and getting better at life can bugger off out of my life.
I've done my time of being told everything was my fault and if I just tried harder I wouldn't be creating all these problems for myself. I am not going back in that jail cell because somebody made up their mind that ADHD can only be what they think it is....despite all the evidence to the contrary. They can go be the warden in chief of somebody else's shackled happiness, cos mine has walked out of the courtroom and refuses to be judged anymore.