You're right, gents, I'm not a financial advisor.
But I bought a flat more than 5 years ago and it has gone up in value a lot more than £50k.
Now I know that the past performance of any market is no indicator of future performance (!), but long term, the only way that the housing market in this country is going is up. Even if Sarah Beaney's bubble might burst.
There a plenty of people over on the Wannabe's how have paid for their training using the equity that they have gained from the housing market.
This is, after all, just my personal experience.
If you wouldn't recommend the housing market, how else would you advise somebody of that age to raise £50k+ of capital in 5 years? And, no, peddling drugs isn't an option...
PS To conclude the tale, I have decided not to sell the flat (because it continues to 'earn' at a far greater rate than I probably ever will). I have bought a second house which I plan to sell in 5 years. In order to pay off my training loan.