The disadvantages of having online friends is you will just chat with them without going out to play with them. That will make the distance between you and those around you gradually widening.Especially sitting in front of computers too long is bad for eyes.On the other hands having online friends have some advantages.For example, we can make friend with they,ask they some question what we don't know,and we can discuss together about the topics which we want to know.So we should have online friends but don't spend too much time having online friends.Unless we will be severe nearsightedness
