Are social networks anti-social?

Nowadays, many people are registered on social networks. The most famous ones are twitter, instagram and facebook. These social networks can be good for people, but not always.
First and foremost, social networks serve to share information and pictures with other peolpe. Also, they are used for contacting with people that you have not seen for a long time. In my opinion, they are good when you have lost the contact of with an old friend and you want to recuperate it. Then,it is easy to find your friend on social networks. These are the positive aspects of social networks.
The disadvantages come when they become an addiction for people. For example, there are people who meet with someone and instead of talking to them him , they prefer to be chatting on the phone with other friends or connected to social networks.
In conclusion, social networks could be a good tool to socialize with people, but the problem is when they become a (bad) habit for people.

Very good