Have you already purchased btc before? They place a 30 day hold for your first order, campbx used to/still does the same thing. If you don't like it I would suggest writing your congress people and telling them the regulations are too much.
The hold is so you don't scam them. Remember a bitcoin isn't reversible, but many ways to send USD are reversible. People fail to remember that coinbase isn't an exchange it is easy to forget that. Just like you wouldn't go to a local currency exchanger to hedge yourself against the Euro, it works the same way. You have to use coinbase as way to change dollars into bitcoins, and not to worry about the price. Even though coinbase claims they are like the bitcoin trading software for average people, you also have to work through the tiers to get to that point.
When you hear Brian Armstrong talk, you see that he is creating the first bitcoin bank. A place that will be known to be safe and secure. A place where the average user will just use bitcoins to send overseas with very low fees. After watching his Foundation episode you get that sense even more. When he starts talking about wills and such.