Judging by the fact that the genuine Justin Berfield account is following him and the fact that this looks like a very recent picture of Erik that we haven't seen from any other source before, it looks likely to me that this is Erik's genuine account.
Yes, it must be real, I also looked at his followers. He looks alarmingly like a friend of mine now . It's great to see him all grown up and so relaxed! Of course, it remains up to him if he just wants to lead a normal college life and not be the centre of attention, that's fine with me.