I was hellbent on staying single forever when I came to SE Asia many years ago, and I've always said I'll never have biological kids of my own when so many children around the world are in orphanages. At one time I was convinced I could adopt as a single father, but after some research I realized only a few hundred American men each year are granted this opportunity, most of them pilots, doctors, and other elite professionals.
Fast forward to now, I'm married with two stepchildren, and there are definitely times when I miss the simple life, $50 rental room and no financial worries, lots of free time, etc., instead of falling asleep at my desk in the wee morning hours every night 😂. One thing is for sure, the grass is always greener on the other side, so I give thanks for what I have, but I do miss my golden retriever and beagle, they were such great companions.
I say stay single as long as you can, live it up and keep Nadi away from bad canine influences.
I know a lot of people that are in similar situations to your own. They could never imagine being married and especially not having kids... until they did and thankfully they are all quite good at it. I do think they miss their single party-style life though and this is to be expected.