AITAH for not going out to eat to celebrate my brother’s wedding when I wasn’t even invited to his wedding?

A 19-year-old was turned away from his own brother’s wedding due to his age. The bride insisted on a 21+ guest list to prevent any “minors” from drinking alcohol at the celebration, leaving him hurt and uninvited for what appeared to be an unreasonable cause. Despite his repeated calls for reconsideration, his brother and sister-in-law