As an older than average poster on mumsnet here is my take:
My grandmother was 27 when Queen Victoria died. If my parents were still alive my dad would be 112 and my mum 103 - both my parents, and DH and I were over 40 when we had DC. My dad was in the RAF during the war and my mum with the Free French.
Posters who talk about texting/messaging their partners when first dating - mobiles hadn't been invented when I first started going out with boys.
I did O leveles, not GCSEs. We didn't have calculators for maths O level, and had to show our rough workings out in pencil on the exam paper. We had a book of log tables for logs and trigonometry.
I grew up with black and white TV.
I had friends at school who didn't even have a phone in the house. DH's mum didn't have a phone when I first met her.
Most of my peers from school are grandparents. DD is a university student.
All baby and childhood photos of me are in black and white.
I pre-date fax machines, cheap flights, mobile phones of any description, home computers, social media, compulsory seat belts.
Fortunately the equal opportunities act came in two years before I started work, new year's day became a bank holiday three years before, and the Mayday bank holiday the year I started work.