I believe the answer is: False
Mandatory language is actually advisable to be used in this situation.
Using mandatory language would set a clear limitation that make the consumers understand the magnitude of the danger. This would make them much more likely to follow the written warning.
Explanation:
they must get jailed because they abuses the freedom they are given, to have rights and responsibilities
People migrating from one place to another, new ideas being introduced. is this multiple choice? i’d say the last one if so