European too, and had opposite experience: had access to internet quite young (around 8-9 years old I was already starting to bother my parents so that I could play on battle.net a bit and this meant they coudldn't receive phone calls! but it was max 20h of internet per months... until AOL and their wonderful unlimited dial-up of course). However I didn't get a cell phone until 15.
When I was in sixth and seventh grade most of the communications with my classmates were through AIM. Then it was MSN, then facebook...
And then when mobile data became all the rage, everyone I know just installed ICQ on their phone because the data transfer for ICQ was less than the cost of an SMS.
I grew up in Europe and when I got to the US, I was surprised to see most of my classmates either without a phone or just getting one. I got my first cell phone when I was nine? Maybe eight? Most of my classmates got their by the age of twelve. In the US, my classmates got their phones when they were 14 or 16 or even older; however, they had ready access to a computer at all times, I didn't have that back in Europe.