Ok I've thought about this a lot and I haven't really seen anything on this forum about it.
When I first heard about destiny I was hyped. Another game that my brothers and I could play together like we did with Halo Reach(greatest halo multiplayer game). The game dropped and we all began our journeys as guardian of the tower. We began on earth in Russia(why Russia??? Idk) where the fallen were introduced. Then from there we went to the moon where fought the hive. The we flew our ship to Venus where we fought the vex and finally Mars where the came face to face with the cabal.
Now to my point. Why is it that we aren't able to explore the last city on earth? Well the last safe city as they refer to it. Why can't we go up to the traveler? Don't get me wrong I love this game and I will continue to play but I believe by even allowing so simple as to explore the city that you are defending could go a long way. Those are just my thoughts.