My childhood was between 2007 and mid-2015, I'd say.
First of all, I miss the graphic design. Everything's so flat these days. I preferred it back when everything was shiny and skeuomorphic.
There was better stuff on TV, too - especially the cartoons. Also, I could have watched TV on my DS using one of those special Game Paks, as we hadn't quite switched to digital yet.
Furthermore, the TV ads were actually entertaining, and we had more PIFs.
The internet was more fun.
YouTube was fair and funny
Flash games were still a thing
Vine was just around the corner
There was so little advertising and tracking everywhere that I didn't need to bother with my über-hardened web browser set up. Hell, I could probably have made do with something like Lynx or NetSurf and not missed out on any content.
We were still in the Rage Era of memes, which I would say was infinitely superior to the MLG Era.
Everything was cheap a couple of years after the housing crisis. You could buy shower gel at Tesco for just 2p.
We were still in the EU, which was nice.
Chester Bennington from Linkin Park was still alive
David Bowie was still alive
Betty White was still alive
Steven Hawking was still alive
Avicii was still alive
Prince was still alive
The Queen was still alive
Obama was president
Mojang wasn't owned by Microsoft
Windows was, in my opinion, an alright OS
iPhones could be jailbroken and apps sideloaded more easily