Is Waking up in the Morning truly a Necessity?

So I am not a Morning person, I like to take my Time to wake up. That being said I don't have a Job so I can do that. But what I want to ask is that why Waking up early in the Morning is considered a Good Thing or a Necessity.

My Mom always scolds me for not waking up early in the Morning and honestly I fail to get the Logic behind Waking up early.

I hope this question leads to an Interesting thread.