Nowadays, the most people are prefer to make conversation in online rather than in real life, in my opinion some people are introvert, and they could not to interact with each other in real-life, I think it is positive development.
Firstly, more people are using mobile phone and everyone accustomed to use some social media, so people feel more comfortable when they are interact with each of them only online, because some people have fear to speak in real life, so they decide to speak with their friends only online. Also people can talk with each other in different distance, because every people cannot go to place where his friend, they can only talk or make conversation with some apps. Also, some have some illness and they cannot to meet their friends, so they can use social apps. I believe that some individuals acquire to talk with people only online.
On the other hand, when people talk with other people only online apps, they could not grow as personality, people need to overcome their fears for growth, while people do not to depend on mobile phone. Although, some need to speak with each other only face-to-face and grow as personality and they will be confident to speak with each person. I believe that people can make balance to interact with people and grow as personality.
In conclusion, people choose talk in online because it is comfortable for them and helpful to make conversation without distance. It is positive development for everyone, just conserve balance to talk with people online and offline.