It's easy to forget, but Yamcha is not good with women and approaches Goku in an attempt to steal the Dragon Balls. However, as he trains with Goku under Master Roshi, he gradually changes. Let's take a look at Yamcha.
Yamcha is a handsome man
Source: Dragon Ball ©Bird Studio/Shueisha, Toei Animation
As you can see, Yamcha is what modern people would call a handsome man. That's why, even though Bulma has someone else in her life, she falls in love with Yamcha at first sight. It's not just Bulma; it seems that many other women fell in love with Yamcha as well. I think he's the kind of person who will approach them even if they don't say anything. That's why I think he's a very popular character. He's probably one of the most popular male characters in Dragon Ball. However, Trunks and Goten seem to be more popular. And somehow, he ends up dating Bulma. However, both Bulma and Yamcha are unfaithful. That's why they fight a lot, and they end up breaking up. But it's hard to imagine that he wasn't good with women before he fell in love with Bulma.
Sometimes he's not careful
Source: Dragon Ball ©Bird Studio/Shueisha, Toei Animation
Yamcha sometimes lets his guard down in fights. He might have used harsh words to rile up his opponent, thinking that would make them flinch and win. But in the end, he lost. Yamcha's plan ended up failing. When fighting other normal people, he tends to slack off, perhaps because he's confident he's stronger than them. This is disrespectful to the opponent. During the Saiyan invasion, I didn't notice that the enemy character was pretending to be dead, and I was caught off guard and defeated instead. If I had fought more carefully, I think that wouldn't have happened.
Yamcha's Combat Ability
Source: Dragon Ball ©Bird Studio/Shueisha, Toei Animation
Compared to Son Goku and Vegeta, he seems incredibly weak. That's why people often say he's weak. But that's because his opponents are incredibly strong. Yamcha is also pretty strong. For example, he takes on Recoome of the Ginyu Force. That Ginyu Force. And Recoome is set to be about the third strongest character in the Ginyu Force. That's why he was able to take on that character. Compared to the beginning, you can see that he's getting stronger little by little. This was especially after he had trained on King Kai's planet. It feels like the results of his training are finally starting to show.
Rival: Goku
Source: Dragon Ball ©Bird Studio/Shueisha, Toei Animation
To Yamcha, Goku is a rival. He's incredibly strong, and an opponent that's extremely difficult to defeat. I don't think he was particularly conscious of him at first. However, I think he learned something from training with Master Roshi. Until then, his goal was to steal the Dragon Balls. However, he gradually changed physically, taking on a more powerful aura both inside and out.
Summary
Source: Dragon Ball ©Bird Studio/Shueisha, Toei Animation
I looked into Yamcha. I thought he'd be used to talking to so many women, but it turns out he wasn't very good with them at first. It was surprising to see how that changed when he met Bulma. He's so good-looking, it's easy to see why women can't help but be drawn to him. However, he does have some issues, like cheating. When it comes to fighting, he seems to let his guard down and take things lightly. If he'd been more careful, he might have been able to win. But just when he was close, he was defeated. It's a bit disappointing, isn't it? However, by training with someone as strong as Goku, it seems like he's gradually become more serious than he was at the beginning. His training has made him stronger both mentally and physically, and he seems to be taking things more seriously than before. Overall, he still has a long way to go compared to Goku and Vegeta. But I hope that one day he'll catch up to their level.