If your capital is only $200 and you think that you have no other capital than this $200 that you will invest in Bitcoin, then you do not need to invest in Bitcoin.
I don't agree with you. If you have some money with you and $200 is the only capital you can afford to invest in Bitcoin, I don't see why you shouldn't invest in Bitcoin. If $200 is all the money you have and you can't afford to invest any amount of it in Bitcoin, then if you choose not to invest in Bitcoin, that's fine. And if $200 is all you have, you don't need to invest all of it in Bitcoin because that is not the right way to approach Bitcoin investment. The main way to invest in Bitcoin is to have a steady source of income, make a budget for your expenditures, and whatever is left, you can plan to invest what you can afford. Bitcoin investment is possible when there is a good understanding and good management of money.