Can someone with no major trauma still need therapy and complain a lot?

My younger brother (mom's 4th and last child; the baby in the family) is like that. Our mother was the tough one in the house, our father rarely ever. Then she decided to go soft on my brother because he was the last child. She got tired of her usual old-school style and went total opposite with him.

My brother never got bullied at school either. He never even got in a fight either. He never got hit in his life by anymore, not even our mother. He was spared of all that. It's me that needs therapy for the way mom treated me and getting bullied at all. We had it worse than him.

Yet, I just found out my brother has been on his 2nd session with my same psychologist and he still complains about trivial things. What? What is he got to be complaining about? He has no idea what's like to truly have traumas? He complains about the couple times mom compared him to others and told him to improve on things. That's a whole lot less than what we went through. He had it all handed to him with a gold spoon and he's still ungrateful, still whining, what?

Honestly, are there people like him, that are still complaining even when they never had it tough in life, never experienced getting bullied and never even got hit by anyone?

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11 h
I find it funny, he complains about mom telling him to improve on things and comparing him to others meanwhile, I had to deal with her chasing me with a stick or shoes, yelling, hurling insults, bullyings at school, etc.
Can someone with no major trauma still need therapy and complain a lot?
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