Angry old reactionary man who constantly complains about lattes and hybrid cars makes friends with young hippy idiots whom he berates the entire movie while teaching them how to be a 'real adult' but also they end up bonding because he secretly has a heart of gold or some shit.
If I wanted to hear a self important chud boomer make snide remarks for 2 hours I'd visit my parents.
This genre was so huge during the 80s and 90s as the people who were selling their kids futures were trying to remind us young folks how "good we have it."