I disagree that WWI is forgotten here in the States. I believe our education system has long become sub-standard and only explores topics and social issues that are politically correct. I strongly suggest walking any town common here in the US and take a good look at those "old green statues, plaques, granite monuments, and cannon". There is a reason those monuments exist and are maintained to this day. They are there for much more than graffiti tags or a pigeon perch.
If you feel you've been short changed and lack historical knowledge, then I suggest as a tax payer, you take it up with your local school board. Perhaps some day we can return to real education and not an indoctrination in our school systems, but I seriously doubt it will ever happen.