Thought of some more -
When there were no mobile phones - I hate the way we are all slaves to them, checking them all the time, mindlessly scrolling at every opportunity. I miss watching the world and people go by. I think I am quite strict with myself in that I don't scroll endlessly, particularly when I go out, but it saddens me to see a group of people at a table, not talking, just staring at their phones. Also, I don't want to be contactable 24/7.
Carrying a purse containing notes and coins, and yes, cheque books.
Before children became the be all and end all, ruling the roost in so many families, with parents unable to say 'no' or discipline them properly.
Flirting which seems to not be allowed any more!
Quiet Sundays, with the shops closed and people just spending time at home with their families.
Going out for dinner at a nice restaurant, and not being confronted with steaks served on a tile, or chips in a mini watering can, or strange ingredients - just good, honest, wholesome food served on a plate!