Can you buy a house with BTC? Yes! All you need is a buyer with coins and a seller that will accept them. The value of the transaction is as of the date of the contract, when the coins change hands.
I think it is a good idea because we all know that in bitcoin nothing is impossible and people may face sometimes hard trials or obstacles yet they will not gonna fall and just to believe things is possible. I think they can buy their own house just in bitcoin working yet they need to work hard and to be wise in using their money even-though they have something to buy and want. They must resist in order to achieve their dream house.