Why don't you know how to drive a manual car? Why don't you know how to ride a moped and a motorcycle? It doesn't matter if you own them but you should know how to safely ride/drive them. It's a life skill. It's not even difficult and the skills are even transferrable. I learnt car and bike simultaneously and the more I used one, the easier it was to understand the other one.
Learn driving everyone. It's an essential skill and it's even fun. Manual is not difficult AT ALL.
