Form Validation Not Working - Errors Not Showing

1. Validation runs but error state not updated
2. Error message rendered conditionally but logic is wrong
3. Validation only on submit, not on change
4. Validation function not actually preventing submission
5. Form still submits even with validation errors

Validate on blur for UX: onBlur={() => { if(!isValid) setErrors({...errors, field: 'error'}) }}

Show error conditionally: {errors.email && {errors.email}}

Prevent submit: button disabled={!isFormValid} or check errors in submit handler

Use library: react-hook-form, formik, zod for robust validation

Provide real-time feedback: show validation status as user types