I used the old dial up when I was about 12 (we were late to the game) we used to get told off because people were trying to phone us and you couldn't use the internet and the landline at the same time
Oh... God... This is so hard to answer, I can't really remember but... my guess would be... when I was 8-13? Something in the middle? maybe closer to 10? I do remember it was when internet was finally starting to become a thing in my country, you know, other than for companies and such.