bowser dropped out of high school to pursue a career in construction
he worked hard alongside his brother, an unnamed koopa who doesnt want his name revealed, even though his adopted father, kamek, told him he would be a failure after the events from yoshi's island and yoshis story
growing up in an abusive household, he couldnt take it anymore and started taking drugs (
Mushroom) and tried to move away from his home in the suburbs
he eventually lived on the construction site and learned how to make fortresses and castles, specializing in them in the future
bowser became good friends with the dean, this guy (but he was actually like 15 years older) (
Toadsworth_the_Younger), and the two had a great time building things together and chillen. they were one in the same and made lots of neat stuff. bowser learned a lot from the dean and respected him very much so, but the dean told him that he had a long way to go until he became a master at building stuff. he said he would acknowledge him as his successor on that day.
on the day when bowser was supposed to graduate his construction course, they found out that bowser didnt complete high school and when he went to get his degree they didnt let him because of that
so he got mad and told the dean about how it was unfair and he should get it and told him about the time they spent together making buildings. but the dean said it was impossible and he'd have to find another career or redo high school. upset, bowser had pleaded one last time but the dean said he just couldnt do it. tears in his eyes, bowser got mad and he stormed off, vowing that he'd have his revenge on him one day.
so bowser set off on a journey and said fuck it, he doesnt need no degrees to be a licensed construction man, he can do that shit himself
he started out
building small ones and wanted to follow his dream no matter what.
a few years later after the dean had retired, someone tipped him off that he built a castle (
Princess_Peach's_Castle) for his grand-daughter and retired there
by now bowser had
perfected his skills somewhat at building castles and he did make a
grand and durable one for himself. so he proceeded with his revenge plan on the dean (thread title) and thus a war begun between bowser and the dean. kidnapping his grand-daughter is simply just means to get his attention; he wants to show the dean that he is capable of making some of the best castles and fortresses in the world and wants him to acknowledge him and be friends again. why else do you think the appearance of bowser's castle changes each time? its cause of that
and so to this day, bowser continues to do the same shit over and over until he finds the perfect design to impress his once best friend and mentor