Well I was walking around to explore and I hit a fake wall that trapped me for around 5 minutes, I had to get my cousin to come and free me. Whats the point of playing on PC when i'm limited on my xbox?
I suspect you are talking about being in the wastelands. They are size limited because they are resource lands, and there are plenty of resources in its current size.
I think you might be referring to the wastelands. The world is limited, so it would best not to use that world for exploring. However, the frontier is unlimited and there are no pesky world borders to trap you.
Problem has pretty much been addressed, but in 1.8 we can at least use proper world borders that don't trap you.