"I don’t need a stair-climbing wheelchair that costs $30,000 and requires a maintenance crew. I need better doorknobs and or a ramp."

Author fails to realize that "better doorknobs and or a ramp" would incur a social cost of billions or more (even w/o adding the social cost tied to legislation, legal costs, and maintenance) as compared to his imaginary $30k "silicon dongle". That's w/o considering such questions as whether I (and all other taxpayers) should pay for a doorknob we don't need but he does. We might be more willing to buy him a SpaceX rocket and send him into orbit around the Sun.

He's a pissed-off handicapped fellow. I get that. And current society is (or once was) one that rewards people for solving their own problems instead of complaining. This may no longer be true: social media, gofundme, the metoo movement, etc. have moved the dial so that formerly "helpless" bitching can be quite rewarding, but I digress. Perhaps someday we'll be so wealthy that every individual's cares and needs are provided for. But we're not there yet.

So if I were him I might do something like go into business designing and marketing a better doorknob opener for the handicapped instead of complaining no one gives a shite. FWIW here's some SOTA at a $30 price-level:

https://www.caregiverproducts.com/handy-hook-door-opening-ai...

Got to admit that looks pretty "iffy" for opening doors, more like a personal defense weapon. In any case it might get you labelled as "Captain Hook" at the grade school (OTOH its always good to have respect, if not reverence). Anyhow, its a starting point and you can only do better!8-)

WTF do posters so often fail to provide an open URL? This is childlike behavior: OP mistakenly believes everyone sees the Internet just exactly like (s)he does!

One of the lowest pickup lies I've heard but, as usual, worth a try!

Both are in great demand right now and a quick study for anyone with a semi-technical background.

I recommend plumbing b/c the A/C path leads you into extremely hot, dusty attics et al during the summer months (and you're not getting any younger!). Also, plumbing involves work with a wide variety of materials, quite ancient tech but nonetheless fascinating.

Good news is a wrong choice makes little difference b/c if, after a few months of plumbing, you believe you chose wrong, you can easily train up in A/C/heating in less than a year.

Vive la France!

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