How to say in Czech: They have their own problems.

English
have their own problems.
Czech
Oni mají své vlastní problémy.
They had to do everything on their own.
Are they learning Arabic on their own?
They are not used to being on their own.
They are old enough to make their own decisions.
They are old enough to stand on their own feet.
They figured it out all on their own.
They grow their own vegetables.
They started their own company.
They do not understand what the problem is.
No problem.

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