Guys who hit their stride with dating in their 30s but do not want to be monogamous, how do you mentally deal with it?

I feel like at 28 things clicked for me and by my 30s, I was doing really well with dating. I am not encouraging breaking rule 3 here but it is just that I have met so many women who are mutually okay with "having fun" with me. Deep down, I feel like if I was to get married or even be monogamous, it is because I was pressured into it.

However, I feel as if in society, guys in my situation are vilified. Like we were supposed to have been the stud at 21 and then automatically get married at 30.

But here I am with a dating life that was crap throughout my 20s and just now in my 30s I am hitting my stride. I really just feel like having fun for a bit rather than settling down immediately.

How do you mentally deal with being here?