Talking about Twitter

I wonder if Twitter is gonna be the next generation school for the kids. Culturally, people - even smart ones - believe that twitter does good to their status and shows that they are quite active on the internet? How much reality lies in such thoughts?

Is twitter really worth using? Can people find time for their happenings to be tweeted while giving 100% effort to thier tasks? Why would I tweet my personal life and tell people about my mistakes? Why would I not simply follow people like few smart people do with their opponent leaders. Some people tweet when they go for a coffee, when they wake up, etc. What good does it do to them? Is it motivation in a way? Few questions, unanswered.

PS: I would never use twitter. Infact, I started with blogging recently and feel its a way to just freak out my thoughts without caring who reads them or who follows my blogs. I wonder if anyone but me reads them.