Do people who often swear give people a bad feeling? Gentle people, occasionally swearing, will have this effect?

In the impression of my friends, they think I am a very gentle person, but if one day I swear, they will think I will swear. They said, "Really? You still say? I thought you never used rude words! " The impression may be that I feel bad.

However, people who often curse are unreasonable even if they curse. Instead, they think he is a little taken for granted [because he always says so], and his impression has long been forgotten by time.