Buying bitcoin is no more an issue with the existence of more and more exchanges and other trading platforms. At the beginning people feel it difficult to buy bitcoin because of the fear on exchanges as well the process involved in making a purchase seems complicated. Now everything is very simple and takes place with legitimacy.
It depends too many in which country do you live. In advanced countries you will find more dealers of crypto currency but in small countries like mine there are not too many options to buy or sell bitcoin or any other crypto currency.
You can also find one in your local market or any other place in the world. Go to Google and search for your local exchanger which is more reliable than that of another country’s exchanger.