This is a neat set of course notes on advanced data structures from MIT (link courtesy of Reddit).
Also, kids appear to be doing graph walks in 2nd grade math. Not presented as such, but as “find paths through a set of boxes-and-lines that add up to various numbers” type problems. I tried to get my son to do a DFS using pennies as markers, but I think he was more interested in the pennies.
The singularity will be right around the corner when 8 year old kids start coming home from school complaining that the homework problems are only N log N complexity, and that they’re bored, bored, and that last week Johnny’s family uploaded and everybody’s doing it so why can’t we?