Sometimes you only need a brief response and a phone call isn't necessary Sometimes it's not convenient to speak on the phone. I know i don't like to do so in public that much (bus, train, etc...) Often myself or a friend will want to give quick impressions or share an anecdote or sighting that doesn't actually need an immediate response or a response at all. For a significant other or one you're "seeing" it's a nice way of staying in touch with them or letting eachother know you're thinking about the other. Doesn't have to be sappy but can be "just found this great bakery we should check out one of these days" or something like that. I agree that some people take it too far. However, some people have those fancy typing phones where it's basically just a mobile email or Instant Message chat client that people use on their personal computers. Still, being "against texts" on some moral or old fashioned ground is silly. They are useful at times and some people of course take it to an excess. The same can be said for actual talking on the phone though.
