A form that only works with a mouse is a form that loses submissions.

Accessibility is a conversion problem too

Most accessibility work on forms is framed as compliance. It is more useful to frame it as losing submissions you never hear about: the person on a keyboard who cannot see where they are, the person using a screen reader who never learns the form failed, the person on a phone with a thumb and a small target. None of them email to complain. They leave.

The four things worth fixing first

1. Labels bound to controls. A <label for="email"> and <input id="email"> gives a name, a bigger click target, and voice-control support in one change.
2. Visible focus. Never outline: none without a replacement ring. Keyboard users navigate by watching that ring move.
3. Errors as text, tied to the field. Colour alone fails for colour-blind users and fails in a screenshot. Point the field at its message with aria-describedby.
4. An announced result. A submission that succeeds silently looks identical to one that never sent.

The status region, concretely

This is the piece forms most often get wrong, because the success text usually appears visually and nowhere else. A live region solves it: put role="status" on a stable element and change only its text.

<p class="fs-status" role="status" aria-live="polite"></p>

<!-- the form above it; the embed script writes into this node -->
<form action="https://freelyform.com/f/FORM_ID" method="POST">...</form>

The honeypot, hidden properly

A honeypot that is display:none is skipped by most automated scripts — which sounds good and is not, because then the trap catches nothing. The trap has to be visible to a naive form filler. So it is positioned off-screen and hidden from the accessibility tree instead: aria-hidden="true", tabindex="-1", and a label telling assistive technology to skip it.

What the fallback is for

No form is completable by everyone. A published address next to the form is not a design failure; it is the acknowledgement that a file input, a 10 MB limit, or a captcha will each exclude somebody. Cheap, honest, and the one thing an audit will never credit you for.