Husband wants to go to bachelor party?

My husband was invited to a bachelor party for a co-worker whom he's not even good friends with. That's okay. But, he is insistent on going just because his co-workers are and he doesn't want to be the guy who "didn't go". Because this is for a guy he hardly knows, I see it as a way to get out of the house, leave me at home with the baby and he gets a free fun night out. Now if its a party for a good friend, I completely understand and have no reservations. But going to a strip club, being out all night and drinking for a guy he doesn't even know I think is ridiculous. I wouldn't be opposed to a happy hour with the guy, but I think when you're married you have different values and out of respect for your wife, don't go. He says he wouldn't mind if I did it, but I wouldn't go to some girl's bachelorette I hardly knew. If he was single, by all means go. But this guy isn't even my husband's buddy, he doesn't know a thing about him when I've asked, in fact, I've only met this guy two times in a span of over a year.