A person may have the legal right to vote and face no direct prohibition, yet be unable to vote due to lack of transportation to a polling station 200 kilometers away

Real freedom in this sense means that one has all the required means necessary to achieve that doing and being if one wishes to. That is, it is not merely the formal freedom to do or be something, but the substantial opportunity to achieve it. Someone might, for example, have the formal freedom to vote in elections in the sense that she has the right to do so and that no one will stop her from doing so, but she might lack the substantial possibility to vote because the closest voting station is