We are all exposed to hostile language, sometimes full of foul-sounding words. The so-called "bad words" accompany us more than they should. They are used with great frequency through different external sources: family, media, etc.
The family is the main socializing context, in it the first notions of language and morality are acquired. Children are mirrors that reproduce exactly what they see. If they see it in people important to them, they will repeat it more, because said behavior is validated. Measuring our vocabulary in the presence of our children is important to prevent them from introducing profanity into their vocabulary.
However, it is common to find families where hostile words are not used and their children begin to reproduce them. As we have commented, there are many different contexts in which our children develop and these words can come from them. How you react to your first swear words is vitally important.
If we want our child not to be attracted to the use of curse words, write down. Punishments, exaggerations such as "have you heard what the child just said?", And so on. they only help them understand that these words have a power over adults. These strategies do not usually work, as they end up making words powerful. They learn their usefulness in different contexts and will use them over and over again.
Between 3 and 5 years the appearance of curse words in the vocabulary of children is usually related to imitation of models, without understanding exactly the meaning of these words. It will be the reaction that this word generates in adults that gives it meaning. If when they pronounce it, everyone looks at each other, and some repress it, you know that it is not appropriate to say it, but it can be useful in moments of anger and frustration since you know that it works in negative contexts.
What happens if when our child begins to use these words, we do not react to them? The answer is simple, you will not associate any consequences, either positive or negative. In this way you will stop using it by not having an effect on others.
Therefore, the first solution that we must put into practice when eliminating curse words from the vocabulary of the little ones should be ignore said words. Only in this way will they not learn that their reproduction can have good or bad consequences.