Can not import CSV with INT type

I generated Users.csv where I have simple ID and AGE fields. By default importing detects this fields like STRING but when I change type to INT importing fails.

8 10:17:13 IMPORT_DATA Import of tables failed: Type mismatch of column ‘id’ in table ‘Users’. Database column type ‘STRING’. Column type in file ‘INT’.
9 10:17:13 IMPORT_DATA Importing failed. Exception:java.lang.RuntimeException: Type mismatch of column ‘id’ in table ‘Users’. Database column type ‘STRING’. Column type in file ‘INT’.

ok, the problem is only on the id field. deleted this, age imported correctly

Users is a system table. You cannot change the data type of objectId.

No, I was generating my own ID in a mock service. I understood I don’t need it and can use objectId