Seriously, why is this a thing?

i like it for both. i don't know how to contain myself when they sing it to me but i like it....

Welcome to adulthood. We have rules and laws and customs most people don’t like- but usually it’s a good enough reason for people to keep them because change is scary; or “me/so and so had to go through it so you should too.” The happy birthday paradox can be applied to many aspects of life.