The UK BTC economy is pitiful compared to most first world countries. If the government was keen on moving things along they'd put together some guidelines so banks can't hide behind the lack of regulation excuse.
Well it's like most countries in the end.
I think the fact that there are no big GBP exchanges doesn't help, people can't have positive thoughts about something they don't use.
If you're in Europe there are banking options. If you're in the US there are options too. I don't know of a single business in the UK that's managed to maintain a bank account. I'm not sure there's anywhere quite like it anywhere else.
The UK has a protective government, which may actually be good because if they decide in favor of bitcoin people will trust it, whereas in the rest of Europe there are many "I don't know.../Yeah it's kinda legal.../Go ahead and use it but don't ask us questions..." kind of politics regarding crypto.