I rode one on an international flight in 2007 that seemed like pristine stock from the 70s. Still had a weird lounge on the second floor, and those awful headphones that are just like piped-in music. The seats still had the little ash trays in the armrest too. Quite an experience!
Comments like yours remind me how everyone's life experience is different!
For various reasons, my family would fly back and forth between the U.S. and Europe, so I grew up flying thousands of miles a year on 747's.
The year I get married we decided to check out Israel, and flew twice! from NY -> Israel -> NY -> FL -> AZ -> NY -> ETC), with almost all legs on a 747.
In Phoenix I learnt to pilot a small plane, (and have sat in the pilot's seat of 747 without touching anything :)), and that's probably because of my rearing.
EDIT: heres what those headphones look like, they're literally just tubes that carry the sound from a tiny speaker in the armrest: https://static.flight-report.com/media/photos/jRkTcB8Xr0/IMG...