I'm 66 and the only online gaming I had ever done, up until GT7, was poker. Everything else seemed like it would be a bunch of snot-nosed kids laughing as they tore me apart.
For a while after I bought GT7, I didn't venture online for roughly the same reason. But when I exhausted all the offline content I cared about, I decided to try the daily races, and now I'm totally hooked. I realized right away that a racing game is way different than most other online games, because it's not about needing to destroy your opponent (not that that doesn't happen). It's about doing the best you can do, personally, and even coming in 10th might seem like a victory depending on the situation.
But most importantly, I realized that the other racers don't give a **** how well or poorly I do. Other than the few idiots out there, nobody's laughing at me if I do poorly - people only care how well they do, personally. Which takes all the perceived pressure off (the worry that snot-nosed kids will laugh at me).
Bottom line, I'm willing to bet there's a lot of oldies out there who feel the way I did, and they only need to be nudged a little to give online a try.
As an aside, the reason I chose the name "Grumpy Old Man" was so I could feel like I was able to yell at the snot-nosed kids to "get off my lawn!"