Your country’s definition of “of age” and my country’s definition of it is likely to differ. Easier to just implement a birthdate field than try to cover all the global legislations for these things. Especially when there are multiple conditions for “of age” in a single country. Old enough to vote? Old enough to drink? Those are often not the same.

From afar, you get the impression that suits are in charge and if there isn’t already some “proof of popularity” of some sort, it won’t get greenlit

in Europe you have to develop and sometimes apply for permits and licenses for each country

Honestly, EU Inc, announced at the WEF, is one of the few good things to come out of that mess. A single framework for running a business in all EU countries, meaning expansion across borders will be simplified enormously. Should allow for easier growth in the future.