Hey guys,
I'm planning to learn devops but many of my friends says that it doesn't have future for more then 2-3 years...
Any advice should I go with devops or learn something else?

Go for it. It won't die out that soon.

Learn it I mean knowing something well is never bad.

What do you mean learn DevOps? DevOps is a buzzword old corporations use to appeal to new developers. I mean, sure, there is some stuff behind it but our team is "DevOps" and all it means in practice is that we sit in the same room with ops people.

We Need this community to explain what really is devops

Learn it anyway. The principles will still apply to whatever technical operations is calling itself in a few years time.