:shrug:Funny this question … does anyone ever ask whether a civil divorce makes a child illigitimate? … what about the other harms done to children when their marriages end … and today 50% of children are bon outside the bonds of marriage - yet people are forever concerned with what an “annulment” does to the child’s status
People marry - they marry civilly - an action sanctioned by the state [requirements met - come are: blood tests, license fees paid, performed by a registered licensed official] … and if at least one party is Catholic - then the marrisge is witnessed by the Church [priest or deacon] … and hopefully met church’s requirements for marriage prep, encounter weekend and Natural Family Planning …
As others have noted - ‘legitimacy’ is a point of law adn impacts things like inheritances … whether or not a person was say - coerced into marriage - for which a later annulment decree might be granted [lack of free will] a civil marriage would have taken place … the child[ren] born of that union would be legitimate