This is an excellent idea - and something I wondered myself. Right now we are getting starting packages, not normal character customization. It isn't necessary to get people to start playing for an early access, but it is something we should expect in the formal release. 5e is wretchedly simplistic, but I really want the 3.5e options where you can take feats to have a character with feats that could even make them proficient with new weapons or armor. But, give the gp to start with, make it like a shop with a lot available to buy the items you want - but not with the crooked merchant mechanics they are using now. I certainly made an elven wizard that had to wait way too long to get a longsword to fight with.