Will just start this thread and see where it takes me... This looks at turnout, for CA Statewide elections from 2002 - 2016, broken into three sets [18-24] [25-39] and [everyone else]. Note how 18-24 year-olds turnout has been 37-42 points below everyone else in Gov Generals. 
Digging into Latino turnout, we can see in the first chart that Latino Turnout is significantly lower than overall turnout. This is driven by lower turnout by young voters... but, here it gets interesting. The lower turnout for 18-24 is similar between Latino and everyone else.
But, the Latino voting population is just much younger. Among white voters, about 40% are 55+, while 23% are 18-34. For Latinos, this is flipped. 40% are age 18-34, only 23% are 55+. Latinos have more voters in the lower performing age brackets, fewer older voters.
For those watching the Orange County races this election cycle, turnout by young voters has been anywhere between 34-35% (2010) to just 18-21% (2014). In Presidential Years, their turnout is under by 21-22pts, but in Gubernatorial cycles it is avg under 36-38 points.
