Baph hun. There are ACTUAL studies that show that women age after having and taking care of children. You posting women that are multimillionaires and don't even be with their children all the time doesn't negate...scientific data.
and Beyonce looks amazing for having 3 children and a hard pregnancy with twins. Certainly you don't think she would look as amazing as she does without having the access to skin care products and world class trainers.
Of course genes play a role but...to say literally all those other factors don't matter is retarded. Post an AVERAGE mom, especially those with more than one kid and they're gonna have aged at least a bit