How is he high risk, compared to driving it around the country-side?
You are more likely to stack it in the country side when hooning, than in London driving in traffic
Where have you pulled that from? Insurance companies work on assessing and calculating risk, what makes you a greater authority on it?
More claims form your risk profile = higher premiums.
Its not a scam because if it didn't cost a lot to insure against that risk, a company could undercut all the others by a few hundred quid and make a killing. Young men it hot hatches in big cities cost a lot of money, that's the fact that a high premium tells you. Just like my loltasticly low premium tells you that a 25 year old driving an accord around Devon costs very little.