Basically, i feel that there are several pros and cons.
The pros are:
1) Relieve stress from schoolwork
2) Past time quicker
3) Improve social cycle by making more friends online
4) Enables brain to think faster when playing mind games or puzzle
games
The cons are:
1) Getting more violent when playing violent games, some of the
youths even killing people in real life
2) Time disorder in youths, making them unable to tell the current
time
3) Too much time spent gaming will cause their school results to
flung
4) More bad tempered, causing family and social problems
In my opinion, i feel that gaming is okay as long as youths know
how much time they spent on it, and not being addicted and
neglecting their studies. 