Many, but realistically (by experience) £500 is waaay too low to make an impact.

IMHO the problem is in the 4 to 5 digits. 3 digits can be scraped together almost trivially - a credit card, a few months of savings - but they won't make a significant difference. People who need £500 to bootstrap are already finding them.

Now, people who need 5,000 - those are underserved in the UK imho. The bank will likely give you a bad deal (if it does at all), it's too little for real investors, and it's too little to risk giving away half the business anyway; but it could still make a substantial difference, because it would allow you to pay for actual manpower at local rates, without having to roll the dice with fiverr or offshores.

This said, it's a step forward, no doubt.