Like

If you see a group of young people, it seems every other word is "like".  Is this the new "um" or "ah"?  I am definitely becoming a grumpy old man as I find this very annoying. It grates on me so much.  I want to go up and say,"do you realise you said "like" 12 times in the last 2 minutes?". Then I think, what is the point? No some things are best not said.