In some countries bitcoin cannot be use to buy Real stuffs like food clothes and other goods and services but even though bitcoin can be used in plenty of ways mostly in the cyberworld it is used in online markets like Game Credits, Gadgets some use it in the dark webs to purchase weeds,drugs. Others are trading it to a different crypto-currency or exchanging to dollars, so how to you use it ? 
In my Country basically we have none regulations about bitcoin is in the gray zone, but the mayor exchange of my country allows withdraw fiat, so we can buy stuff for the day, and with bitcoin, you can buy some fast food, coffee, mining hardware, clothes is not a big market but you can find a lot of stuff with a decent price.