Gramps has already remembered, in totality! Each object’s handle includes the timestamp of the object’s creation. You could query this information, using the SQLite export and these notes and discover your habits.
But then what? I don’t know the location of the Gramps code that defaults the type of a new event. Curiously, the order (based on a brief experiment) seems to be Birth, Death, Burial, Birth, Birth, Birth, Birth …
Maybe you could change the order, or just turn off the defaulting.