Over 60, married, kids in their 30s, with the only difference being that I live in a big city, I have a somewhat different perspective. I have been hobbying with ladies in their early 20s for quite a while. Yes, it is weird in a way that they are younger than my kids, but I am paying for a beautiful body and that is where the most beautiful ones can be found, Not that I do not understand the issues most people and society at large have with this (and most of the other things we do here), it just does not bother me. I am quite capable of separating the two things in my mind. I am not having sex with my kids, my kids' friends, or anything other than a lovely adult who treats me very well. My companions do this willingly, knowingly and I treat them well. That is my view.
Since I live in a big city, I am not too uncomfortable with having an SB. My marital situation may be a bit unusual in ways that give me more freedom than most - my wife likes her own space, and she gives me a lot of space, too, more than I wanted at times - the fact that we both like that has always been key to our compatibility.
SBs are less controllable than providers, no question, and there have been days with dates or meet ups that were at unusual times and places when I wondered if I was going to get questions at home, but I was proactive in my explanations, I have always wandered off to weird or vague places at different times by myself for amusement, so she is mostly used to that. Some of the places I go to and things I do, aside from P4P, make her a little worried about my safety, so she has asked I not tell her about near accidents on a bicycle, for example. Anyway, I do not get a lot of questions, and I do report on my day most days, just spin it a little when I need to skip the lady I saw. If I was in a smaller city or a town where the likelihood of running into people I know was much higher, I am not sure this would work even given my marital situation, but it seems fine in Chicago.
If you can manage the risks, I think a married guy is pretty attractive to the more experienced and aware SBs. Especially a married man who says he has some experience as an SD. As with the hobby, one of the big problems for an SB in an ongoing relationship can be boundaries. Both respecting hers and even worse, falling for her. A married guy with SD experience is often viewed as pretty safe in that sense.
You might try this line on a potential SB who resists pay by meeting. I usually say that I know this is less desirable for her as it is unpredictable, so after we have met 2-3 times and know we get along well, I will be happy to set a schedule a month or two ahead to give her the ability to predict her cash flow. This works better for me because I know when I will see her, and I can keep those days and times clear.
This line seems to be very well received, no arguments yet. It also works whether you actually plan to have a LTR with someone, as I do, or you do not. You just have to say that it is not clicking for you and move on.
have fun
zi