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The original was posted on /r/AmItheAsshole by /u/NextAd1603 on 2023-06-26 22:26:37+00:00.

Growing up my parents were never present. I grew up in a well-off family, my father was always out on a business trip or another while my mom, whp was supposed to be a stay at home mom, would spend more time drinking wine with her friends than taking care of me.

When i was 6 years old they enrolled me in karate classes under sensei Yamada. He was a short, japanese-american man who carried his family’s karate tradition. He was a very kind man with a passion for passing on karate to the young.

We quickly developed a strong bond because i would always be the last student to leave the dojo. He’d show me all kinds of old martial arts movies, we watched the Karate Kid trilogy together 10 times over the years.

As i grew older and became a black belt he became even more present, attending my school events, giving me life advice and just being there for me. I’d spent more time in the dojo than at home. When i was 15 sensei Yamada even hired me as a part-time sensei.

My parents, on the other hand, were always distant and seemed to resent me for… Idk, existing i guess.

Before my 20th birthday came along i asked sensei to give me the greatest gift of all: to accept me in his family and let me carry on his surname. Since he has actual children i thought he’d refuse but he accepted so i legally changed my surname to Yamada.

As expected, my parents were mad and disowned me, calling me an ungrateful brat. However, several friends of mine said i was in the wrong for changing my last name.

AITA?