Experts say students from poorer backgrounds increasingly having to limit their options because of money worries

Most days, Mariam spends hours simply waiting.

The 19-year-old University College London student often finishes her lectures by mid-morning but has careers events or society meetings in the evening. The three-hour round trip to her family home means travelling back and forth makes little sense, so she waits on campus instead. More often than not, by the time the event starts, she is too exhausted to stay long.