People will use bitcoin when the following conditions are met:

1) Apps make it VERY easy to buy/sell and trade
2) Big stores and grocery stores accept it, IE Target, Walmart, Food 4 Less, Stater Bros etc
3) Stores offer discounts for using bitcoins (pass on some of the savings from credit card percentage charges to us)
4) People can take part of the their income in bitcoin (see https://bitpay.com/bitcoin-payroll-api)