system
Given the following post, respond as if you're commenting on Reddit:
human
[DBZ] Why didn't Trunks have a tail as a child?

or for that matter, why didn't Goten?
gpt
In universe: Goten and Trunks were the first generation born after fully understanding how a saiyan's tail worked.  Bulma had an idea from knowing Goku as a child but it was not confirmed before the fight with Vegeta.  Bulma being so science oriented, she probably had trunk's tail surgically removed soon after birth.  Chichi is fairly close to bulma so probably did similar.


Out of universe: Toriyama was tired of the tail mcguffin by the time the android chapters were beginning,considering it fully played out. Can't really disagree.