Everyone starts at the edge, and I'm not sure if it's even possible to reach the center, but the point of the game is kind of irrelevant. It's the process that gets you there that makes No Man's Sky such an enthralling experience.
No matter what type of play style you choose, you'll run into problems like AI combat. There are constant dangers on the planets, in their caves and on their exposed landscapes.
If you die on land and haven't uploaded your discoveries or resources, they'll be lost. In space, you're at risk from pirates warping in and out, stealing your hard-earned loot, as well as dogfights between planets or other solar systems.
If you die out in space, it's a little rougher; it's the one thing in the game you want to avoid at all costs. You'll lose your ship, even if you've upgraded it, and your space station will be completely reset.
Whatever you do, do not die in space.
Day and night systems also exist on every planet. If you enter the world with the space station directly above you, and leave into orbit again in a few moments, you'll notice that the station would've slightly moved, as the actual planet is rotating.
Small ideas like this really make you appreciate the level of detail that's been invested into making a believable universe.