Im an expat living in Asia;
I can say with confidence, because I know, that of the group of 15 other couples that I 'know', 11 ELEVEN of the husbands are regularly using sex workers.
Not 'one offs' but regular and sustained use, with most favouring one specific worker, and at least 3 of that 11, paying for rent and exclusive 'use' on a weekly basis, and a fulltime, residential basis if the wife is away visiting the home country.
11 of the wives do NOT know, and, are not remotely suspicious ( as far as I'm aware, and in the context of regular social contact, girl on girl )
Please know, I have deliberated very deeply as to whether to say anything about this within the social circle, but as per the usual MN advice, I will stay in my own lane. It's far too small a place to make waves. Im very conflicted, but, thats another story.
So, do all men cheat? Id say nearly......