Why do my mum said do not expect any from men but I'm said I never expect anything from men since they some men are trash?

I never expect as nothing from men from my previous experience with some men were cheater, lying bastard's and one player. I know some men are trash and they should stay in trash pile for forever for my own experience with some men.

Why do my mum said do not expect any from men but I'm said I never expect anything from men since they some men are trash?
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