No, they’re investing in people who earn enough that they can take a day off work, or have a single parent earning enough to support them.

Anyone from a family where the parents are necessarily unable to do that cannot attend. So this is a really good way to select for a specific socio-economic group. This also helps inflate grades because most data shows that wealth correlates with academic achievement (for many reasons that aren’t “families are rich because they are smarter than other poorer families”)