Science students have great advantages in studying and finding jobs in Britain.

Science students have great employment advantages.

Science students have advantages over liberal arts students, especially those who study physics, machinery, medicine and chemistry are more likely to find jobs.

Do not choose business class.

I suggest you don't choose business, because anyone can learn without relevant professional background. A considerable number of British students I know are studying business.

Age is not a problem

Age is not a problem, there are many people older than you, and they will not refuse visas because of this. As long as the materials you provide are true and reliable, you will generally not refuse the visa. At present, the signing rate of studying abroad in the UK is over 90%, and the threshold is not high.

Don't show immigration tendency.

Immigrants like Australia are not welcome in Britain. If you get a visa and see an immigrant tendency, you will immediately refuse it. However, it doesn't mean that you have no hope of getting a green card, as long as you are good enough.

Cities outside London are relatively cheap.

In terms of living expenses, I personally think that cities outside London are relatively cheaper, with a cost of 350,000-400,000 a year (including tuition and living expenses).