That’s true. The meaning of the lyrics is consistent with ‘60s “free love” movement. The lyrics are clever, though - good writing.
Years ago I figured the song’s “knowing I’m not shackled by forgotten words and phrases or the ink stains that have dried..” was a story about a guy who didn’t marry the girl.
But hearing the song today, I wonder.
After all, in today’s world a relationship can break up pretty easily.
So maybe the phrase meant he loved her so much that the formal wedding and papers were insignificant. The “knapsack behind the couch” was just metaphorical.
We’ll never know what he really meant — and perhaps that’s how Glenn intended it to be. The phrase makes you think about how to be gentle on the mind of your partner.
Methinks Glen Campbell was as imperfect as the rest of us, but he had a natural talent for song and guitar that he nurtured... and Glenn was a great American.