online trade in UK

“I thought I should learn about investment, and I looked around UK online brokers, but the commissions are very expensive...
Minimum is 6.95 pounds, but you have to make around 10 deals a month.
I asked a British friend of mine advice, but he was also taught by his lecturer that US market was more attractive...

Some stocks in UK are very attractive for me now, but it's a bit difficult anyway.
I think it might be difficult for beginners.