Only validate on submit

Please don't.

This prop validates fields when their values are changing. Setting it to false only validates on form submission.

The only reason this value exists is because people are still writing requirements that forms only validate on submit.

There may be performance reasons for this; although, validationType is passed in each validation function to make that easier to manage on a per-field level without having to globally disable it in OneForm.

Instant validation on field changes is almost always more useful to a user than having them blindly fix fields. Leave this true unless you know what you're doing.