Bitcoin is not a valueless coin. It has a great value and demand. We aren't able to earn bitcoin by doing nothing. People are seeking to get it free but in reality, it is not possible. We have to work physically or mentally to earn it.
Bitcoin is a currency and no one can get free currency. You provide a service and in return you can be paid in bitcoins. Alternatively you can convert you fiat into bitcoins. Some people has misconception that earning bitcoin is easy , which is not true. You have to do the same hard work which you do to earn local currency.