You have to figure out whether the trip is worth the grief you will get from your wife, and OTOH, how important your family is compared to the trip.
For whatever reason, your spouse does not trust you to the extent you wish. (I’m assuming the trip imposes no significant money or time costs upon your family.)
PREPARE FOR UPCOMING GROSS SIMPLIFICATION: There seem to be at least 2 types of marriages. In one, the partners enjoy spending time together, but also pursue their own interests. In the other, the belief is that most if not all social and recreational relationships and activities have to be shared by both spouses. Does one or the other of these models fit your marriage? Do you and your wife agree on how you view that?
So your mind is made up to go on this trip. Be super sweet before you go. Take care of the kid and let her go out with the girls, or pamper herself in some way. Consider calling her from Vegas, telling her you miss her (and don’t be shitfaced at the time.) When you come back, do something extra special for her. And don’t plan on any more trips in the immediate future. This way you will show her that even tho this type of thing isn’t her preference, she can trust you not to totally screw up.
IMO, no, strip clubs ain’t infidelity, but that doesn’t mean your wife has to like them.
Married 7 years, huh? Starting to itch? I read an article a while back that said people marry for irrational reasons: infatuation, desire to change their situation, sense of duty, etc. And when you are courting, neither you nor your prospective partner are really acting like yourselves. One day you wake up and say, whoa, this person next to me isn’t the person I married. You’re right. The person you married was acting differently, and you were seeing her differently. This article suggested this type of realization most often occurs around 7 years. Then, the challenge (and reward) is to see what kind of relationship you can forge between 2 people who really know each other. That type of truly knowing love can be much deeper and stronger than whatever infatuation existed previously.
Sorry if I didn’t express that well.
(Stay away from the “Don’t Pass” bar if I’m rolling!)