Student or Learner
It helps them to prove their identity and gives (them) decent work opportunities.
Can I omit "them" before the verb "gives"?
Please, correct all my mistakes. I should know English perfectly and if you show me my mistakes I will achieve my dream a little bit faster. A lot of thanks.
Not a teacher nor a native speaker.
I wouldn't. Using "them" a second time makes it clear that those work opportunities are given to the same people you were talking about in the first part of the sentence.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.