Q. Are mobile ID cards necessary? In my opinion, mobile ID cards are needed. Firstly, sometimes adults forget to bring their plastic ID cards. Then they have to go back home and get it. But if they use mobile ID cards, they only have to carry their phones. Secondly, the mobile ID cards can be easily copied. But there are systems that can classify the real cards. If the government makes the system mandatory, this problem would be solved. In conclusion, mobile identification cards are better than plastic ones.