Why validation doesn't return error directly on change

[Et7f3]

Here is a repro:
https://stackblitz.com/edit/vitejs-vite-mde7iv?file=src%2FApp.tsx

When I type something like a, b, c, d, ↹ in age field. I don't see any error message printed with console.log ? I expected that if their is some validation error it will force a refresh (so I could add a red border for instance).
Then when I type ⏎ now for each key I type will trigger the errors until the value become valid.

So ⇤ (abc), ⇤ (ab), ⇤ (a) and ⇤ (``) both trigger refresh. Then If I add valid number no issue but the moment when I add any non digit char the errors re-appear (The expected behaviour).

So what I miss so that error also appear in the first place without requiring user to type ⏎

[Moshyfawn]

If you want your validation to run on input change, you should add the appropriate validation mode value:

useForm({
  mode: "onChange"
})

Be sure to check out the useForm docs to learn more.