What people who say that don't understand is that, sometimes, it's not the person's intention to cheat nor do they want to but they expose themselves to scenes that tempt them. The more tempted you are, the harder it is to resist. Eventually it happens and they'll find ways to excuse themselves, like "oh, he's been mean to me" etc. If you just avoid the scene all together, you lessen your chances of being tempted to cheat. You think those guys at the bar are just being friendly when they buy you a drink? Don't be so naive.
I get what you're saying. I think there are two points that are colliding here.
The first is: People view the club-goer negatively based solely on the club-goer's decision to go clubbing. This is an unfair judgement because the club-goer's decision to go clubbing does not automatically make the club-goer a bad person nor does it automatically mean that there is trouble in paradise if the club-goer goes clubbing. Going clubbing may just be something that the club-goer enjoys doing--because they like dancing, for example. Let me put it this way. If you like and enjoy eating ice cream but I'm a self-appointed health-conscious cop, is it fair of me to think that you're a bad decision maker and you're not smart because if you were smart, you'd know that eating ice cream will make you fat? See. It's not fair for me to judge you so harshly, when maybe you're eating ice cream to celebrate a huge life achievement or maybe you're eating ice cream because you feel really sad and just needed the ice cream to cheer you up. In conclusion, whether you go clubbing or eat ice cream--these things do not make you a bad person if you choose to do them. But there will be people that will judge you just because you decide to do one or the other of these things. People need to get a life.
The second is: There is genuine concern from the non-club goers for the club-goers because of temptation. Temptation is a real thing. The more you expose yourself to temptation, the higher the chances that you might not be able to resist it. So, if you were a married person, putting yourself in a tempting situation (such as being at a club with lots of people that use the club scene as a way to pick up guys/girls), might be a potential risk to your marriage should you fail to resist the temptations found at the club. This is a genuine concern and one that I agree with. But, I'm sure the OP understands this, hence, her wanting her husband to tag along and her limiting herself from going clubbing so frequently.
With all that said, a third point to make, which theking already stated numerous times, is that the non-club goers should factor in that temptation can be found anywhere and not just at the club. So,
if non-club goers are going to judge a club-goer so harshly, non-club goers should understand that the club is just one place of temptation, there are tons more, even more harmful ones. Like online, social media, at the grocery store, walking/jogging in the park and saying hi to another jogger who compliments you on your tennis shoes, at work (liking your co-workers), at a restaurant sitting across from the guy or girl of your dreams and making flirty eye contact with them, at the mall accidentally bumping into the guy/girl of your dreams, etc!