There are already solutions for this in place. There is currently bitcoin debit cards you can get, which offer a great solution. You simply deposit your BTC into an account with them, and then use the debt card as if you are using any other bank card. This will result in fewer larger transaction on the BTC network, if widely adopted. Also as BTC rises in value, more will join mining pools. The problem with BTC right now is that it is not yet valuable enough to attract enough people to mining, so the networks combined hash rate is lower than it should be. You must also keep in mind that the simpler the confirmation process for a coin is, the easier it is the hack. BTC was created to stay ahead of the hackers. With all security you are not trying to make it impossible, just not profitable.