i'm really glad that worked out positively for you.
with 50% of american marriages ending in divorce (which means more than 50% are unhappy as some ppl power through a loveless marriage), having children isn't a good defacto default for everyone.
i'd argue many of the issues in today's society are from loveless marriages, high divorce rate, and high one parent raising a child households.
we often think that because something worked out well for us, it must translate for others as well. that simply doesn't take into account the myriad combinations/permutations of any two people and the family they may start.
not saying getting married or having children is a bad idea, in fact, i can easily see how it could raise one's happiness level. however, the math says that doesn't happen for most people (the marriage front specifically, the children may be different)