Can someone exist uae due to emergency at home...

If you have debts owed to some people or entities in the UAE, you must pay these debts before leaving, so that you do not face a decision to prevent you from traveling.
There are many reasons why someone may be banned from travel, but most of them fall under the following four categories:
    criminal offences,
    Outstanding debt,
    breach of immigration laws,
    Family issues (personal status).