Why am I doing this?

Is this blog a complete waste of time?
Or is this the start of a new way of joining in with the rest of the world?
The motivation to start this blog was an address to the ag consultants, suggesting that we should get on board with social media. The idea seemed ho-hum, until I noticed the reaction of the audience. Anyone over thirty thought it was a waste of time, but anyone younger had enthusiastic stories about possible value.
So far, I would be in the "over-30" catagory. But maybe I need to tweak the process. Maybe I should be more active in recruiting followers? Maybe it needs to be teamed with more activity on my Twitter account?
On the other hand, it is quite easy to publish the occasional post, so I can happily keep experimenting.
Any helpful suggestions would be appreciated.