Actors, musicians, and influencers, have a greatlarge impact in the developingment of children, teenagers, and even social relationships.

Your formatting for lists was proper in the second example. 'Large impact' sounds more natural than 'great impact'.

For example, fashions, jesting, or what is trendy….

Before the last item in your list, add a conjunction. An ellipsis doesn't belong at the end.

Some famous people take care of this situation with their words, actions, and behavior, because they feel responsible for the effect that their actions have ion the youngest.

'Famous' isn't a noun on its own. Like any other adjective, it can modify the noun, but it can't act like one by itself. Again note the conjunction before the last item in the list, along with some word choice errors.

On the other hand, the behaved, good manners,child's behavior , manners, and sense of what is right or wrong are the parents responsibility not of them, t. This is the point of view of some popular musicians when they are being asked about their influence ion children or teenagers through their songs.

This is a really confusing sentence that should probably be split up. Also note the grammatical errors.

The last answer for some people is enough, because the community is building with the help of everyone.

I'm a bit confused on what 'the last answer' is. The second clause is also unclear.

Nevertheless, other people agrebelieve that the artists are not responsible for the fact that children listening or watching things with strong content, because it is the parent's responsibility to take care aboutpay attention to the content that their children see.

Given the context of what the rest of your paragraph, 'agree' could make it sound like the viewpoint you are presenting is that of what you've already said. It's best to use a word that demonstrates this new viewpoint is different.

In conclusion, it is neededcessary to hasve regulations or a consensus abouton the topic, because there are children in the middle.