Living in east Asia (Japan in my case) for nearly a decade. Sex definitely happens. There are various sex workers as well that seems to have no lack of business. Many people talking about wanting to get laid and their success in so doing.
With dual incomes bring increasingly required and bad work-life balance (to oversimplify some complex issues) as well as a lack of affordable daycare where the jobs are (various considerations and a lottery system in Tokyo) and similar issues, babies are always something “to do later”. For people who have one, there are other issues after that which do tend to reduce sex life, including the work situation but also kids in the bed for years co-sleeping, which make it harder to have sex generally let alone have more kids at a certain point but this is another topic, I think
Fyi, it’s “no holds barred” as in no type of hold is disallowed. “no holes barred” is a decidedly different sort of event