Yes
A passport and a tourist visa (which we will all do together before we leave) are required for travel to the USA.
Also for the trip to London and Paris we ask that you do the passport, because the queues at the incoming customs are different according to the document (and we don't want to lose anyone!).
Attention: the application and issuing procedures for the passport are sometimes very long! We advise you to take your time (you can find all the information at this LINK).
Your passport lasts ten years: a good reason to start seeing the world.