Growing up, I was the gifted kid and my brother was the hyper socialite.

Because he was hyper and I was mild-mannered (until I hit my teens and became an outcast, so I embraced punk culture) my parents only ever got my brother tested for ADHD. Nope, he was just a hyper little twerp with too much energy.

Meanwhile, I had absolutely zero ability to stick to a schedule that relied on my commitment to it, couldn't maintain any semblance of organization, was always forgetting small things, procrastinating until the last minute on every assignment without ever studying (yet somehow was still making A's, American education is a joke), would hyper focus for hours on single topics. Nah, to my parents I was a good student who was just "lazy" and "not applying myself".

Didn't get diagnosed AuADHD until last year. I'm in my 30s.

I think it has less to do with the actual name ADHD as it does with the stereotypes that laypeople think of and with the actual diagnostic criteria. Regardless of the name, how it is viewed is much more of an outside perspective rather than a description of what it's actually like. Autism has a similar issue as well.

Plus, at the time I was growing up the DSM-IV said that you can't have both ADHD and Autism which is probably part of why I was diagnosed with neither.

i'm hyperfocusing. that's totally not attention deficit.