My step son(26) is getting married and his step brother, my son, (17) is a groomsman. The Bachelor party is a night of bar hopping with a party bus. My son was invited and told he could hang out in the party bus while they bar hop. Sounds awesome, right? Also included in the party is my step son’s father, who has a history of getting drunk and showing his a$$. My son declined saying I didn’t want him around the drunk dad. Now my step son and half the groomsmen are pissed saying you don’t ditch your brother on his bachelor party, completely disregarding the fact that he’s only 17. AITAH for saying he can’t go?