@audiobusting I would suggest still logging on if you're interested. Even if you can't get to an area for a guild mission the event afterwards is a lot of fun. We all group and just run around random areas completing random events. It will get you a lot of XP and help you open up some areas of the map you might not have. The PVE runarounds I have been a part of have all started either near Lion's Arch or another home city that is easy to get to.
Can low-level players join guild missions too? I don't play too often so my highest-level character is still at 40 something.
I don't think there is a level restriction on the guild missions. I think the issue you will have is not having all the waypoints to jump around the world with everyone. This is the problem I had during the first event I was apart of. I still don't have all the waypoints so I run into this issue still.