Someone living on a salary of $50 a month will find it hard to cover his living expenses if he decides to invest in bitcoin, and the person might not hold his bitcoin for the long term. Since bitcoin investment is a long-term investment, we should have a good income source that will help us invest in bitcoin with the money we can afford to lose.
Well it could be possible for someone who earn $50 on a monthly basis to accumulate Bitcoin using a certain amount from there and at the same time it could also not be possible reason been that it could happen that the person is still staying with his family were almost everything is provided for him by his family and doesn't have any responsibility so with that you can see that his monthly salary can hardly affect him if he intend to invest a certain amount into Bitcoin either on a weekly basis or a monthly basis, so actually when we talk about impossibility of someone who earns $50 on a monthly basis to invest on Bitcoin we should also try to consider there could be chance for the person not having any responsibility at the moment.