Yes there are many people that relys on bitcoins as their main source of income but i think most of them are people who didnt have that real decent job to work with so they came up to bitcoins.Students are one of them, including me bitcoins help me to earn for my school
Bitcoin can be a source of income for us. It can helps us in many ways and it can help us to buy foods to buy our goods and to buy everything that we wanted. But we doesnt need to depends on bitcoin we need to find a job also because we cannot know if bitcoin will be gone. But we can treat it as an alternative income.