Bitcoin is just a virtual currency, but it is used as real money to buy many things. There are many people who accept Bitcoin payments for items, including online stores and regular stores. Popular online stores accept Bitcoins including Newegg, Overstock, Microsoft, Dell and more.
In the United States, there are Reeds Jewelers, One Shot Hotels, Holiday Inn, and even pizza locations, restaurants and more. You can even use Bitcoin to buy addictive drugs, gambling, bullion, or even donate to charity. This is the reason why I like BTC.
Of course you can! It has a very wide span now and other apps and stores are allowing bitcoin to be the "money" as payment. It's less hassle and you don't have to cary you waller of paper money around. Besides being a good investment, it is indeed a nice way of payment.