well, TrollskyMcTroll, it may be because people on low wages live in areas where house prices, and consequently rents, far outstrip the average wage.
in addition, have you tried to get a mortgage recently, TrollskyMcTroll?
the restrictions have gotten a bit tighter.
so that a person must have at least 10% and often 20% of the value of the home to put down as a deposit and can only borrow 3x their salary.
so let's just say, TrollskyMcTroll, that a couple earns £25,000 between them. but the average home in their area is £200,0000.
it doesn't take a rocket scientist to realise they're not going to be able to buy anything.
back under that bridge now before the next area of low pressure moves through and pours more rain on you.