Yes, Animal House was about the '60s... but it was about the booze-chugging, madras-wearing, Ivy League '60s. Kenney & Co. had nothing but scorn for the knit-browed, “sincere” folk-rock hippie '60s. None of the Deltas would have been caught dead at Woodstock; they would have hated the patchouli oil and flower-power Freaks as much as they'd have despised the ROTCies, the faculty, and the other Straights.
“Son -- fat, drunk and stupid is no way to go through life.”
And If you look close enough, Belushis wife is one of the women 'swooning' over the 'I gave my love a cherry' guy