The thing is I don't believe the government is doing it for these reasons, I think it's a cheap shot at trying to curb immigration. Did you know that an anagram of the new prime minister's name is " random advice" coincidence I think not!
I am with Paul. We know how UK governments work. They announce this one day then the following day they say University fees will have to rise considerably. This results in fewer youngsters going to Uni. That leaves the way open to get many more foreign students in who pay high fees. These students need visas to stay here for the duration of their couses. They know that these extra visas will show on the figures and and to keep them down they restrict entry to the a section that is easier to control.
Who is to say how difficult they can make the questioning. The private offices that run the visa sections for the UK Gov. could use words that even I do not know the meaning of just to keep their rejection quota up.
Next the UK Gov will be introducing English lessons at an enormous fee and only people who have attended a complete course will be able to go to the UK to live.
Mind you I am an immigrant myself now. Hope the gov. do not make a rule about learning Chinese before I can stay longer!!!!!!!!!!!
Willy