the Olden days...

So Liz is convincing Bianca to write a card to her friend, and in doing so, mentions how when she was young she used to write her grandma handwritten letters and then post them which took a long time to arrive. To which Bianca logically responds, 'Mom, why didn't you just write her an email or chat with her, or SMS her?'
Liz says, 'Emails, instant messaging and SMS are fairly recent developments, when I was growing up we didnt have all those things!'
Bianca's eyes lit up, 'Mom, I didn't know you grew up in the OLDEN DAYS!!??'
Liz says, 'Whoa!! I didn't grow up in the OLDEN DAYS, Bianca... the olden days where before cars & TVs were around, things like that!'
Bianca sensing that Liz didn't exactly want to hear that added, 'I know you didn't grow up in the olden days mom, but my grandma did!'

Somebody please define for me what the 'olden days' are nowadays! Is it before TVs or before plasma and XLCD screens? Is it before the telephone or the cell phone was available for all? Was it before internet or 20MB ADSL came around? Before the airplane or before Ryan Air became a taxi service across Europe? What else is going to be obsolete over the next 10-15 years?

For my own peace of mind I'm going to teach my kids that the 'olden days' were before the technology boom of the 20th century, before the telegram, the light bulb, radio and the NYSE! God bless you all!