Marriage and intercourse frequency: It looks like I'm going to have to go over the statistics to counter this idea that marriage and fatherhood are simply not worth it. I don't have a lot of time right now, so I'll just do this a piece at a time. I know from previous study that married people have sex more frequently than singles.
The first study I found right now in a Google search was of 10,000 Norwegians. Mean number of times per month was 4.3 for single people and 7.0 for married. The study does not appear to adjust for age: older people are more likely to be married, and their sexual activity is lower.
It would also be nice if single were divided into those with a boyfriend/girlfriend and those without. If the rate for the former were double the latter, someone without a regular partner would have sex an average of 2.9 times a month. I'm speculating now, but what you probably have here is a lot of celibate or near-celebate guys balanced out with a handful of players with high numbers.