If your ability to disrupt a market hinges on your ability to not take the bare minimum of steps when it comes to accessibility, then I'm sorry to break it to you, but you're not cut out for "being disruptive". There's no attitude in "the disabled community" (whatever that is) that they are less capable. People with disability mostly want to be able to do things on their own, the same way as the rest of us.

I'm not being uncharitable, and I'm not accusing you of anything, I'm stating a fact. There is no other way to read the comments you've made so far. You've gone as far as framing it as if they just wanted a free coffee. Just because you're labeling it as a non-issue doesn't mean you're right. You've replied to an actual blind person asking for how they deal with it, it's hard to find a better example of how tone-deaf you come off.

You're describing a dystopian version of capitalism. Luckily, reality is much better and most entrepreneurs welcome advice from people with disability on how to make things more accessible.