The same option should be added to normal forms. When "validate" is set to false, no validation should occur (i.e. FormValidator::validate() should be skipped, which is not the case for "validation_groups" => false).

Skipping children validation independently doesn't look easy on first sight since only the root form is validated with a @Valid constraint.

When implementing this option on any form type, we will need to document that its value is only evaluated on root forms (this would be an additional check in the ValidationListener before starting the validator).

While not cascading validation into nested forms would be possible now with the recent changes made in the FormValidator class allowing that would lead to inconsistent and confusing results as constraints attached to the underlying data class would still be evaluated independently and their constraint violations would be added to form fields that the developer didn't intend to be validated (some time ago I wrote a bit more on this topic in #30094).

Thank you for this suggestion.
There has not been a lot of activity here for a while. Would you still like to see this feature?

Just a quick reminder to make a comment on this. If I don't hear anything I'll close this.

Hey,

I didn't hear anything so I'm going to close it. Feel free to comment if this is still relevant, I can always reopen!