No shop classes in high schools anymore; everyone's looking to "go to college" now, and unless you're going to be an engineer, who needs shop? So most kids aren't exposed to fixing stuff or using tools anymore. They don't build stuff anymore, either. It's all computer games now. Sad state of affairs.
Add to that, more and more stuff on cars need special tools or computers to repair and/or diagnose.
1988 Coleman Sequoia - popup (1987-2009)
2012 Roo19 - hybid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10