When I celebrated my bar mitzvah there was no cake. Today there is no such thing as a bar mitzvah in the United States without a special cake. It can be even more complicated and expensive than a wedding cake because bar-mitzvah cakes are often based on a particular theme.
Having two daughters changed my perspective on a lot of things and I definitely have a newfound respect for women. And I think I finally became a good and real man when I had a daughter.