Trunks Briefs

As a child during the Majin Buu arc, Trunks is shown to be quite cocky and stingy just like his father, as well as mischievous, most likely due to the fact that this Trunks grew up with his father, Vegeta and enjoyed the luxuries of peace, while Future Trunks grew up without Future Vegeta and in an apocalyptic world, causing him to be much more serious and cautious.Due to Trunks being the heir to Capsule Corporation and being pampered by his family, he grows up to be a spoiled child. Trunks has a combination of both of his parents' personalities cocky and proud like his father, Vegeta and spoiled and selfish like his mother, Bulma. He refuses to respect someone he does not like, another trait he shares with his father, Vegeta. This is seen when he disrespects Goku when they first meet, as Trunks believes that he is not as strong as his father and again when he wondered why he wasn't present when his father was killed. (This is future Trunks Source Wiki because I’m too lazy to write)