Have you attempted to secure employment in the UK whilst in the UAE?
A visitors visa will only allow you to visit the UK. It will not allow you to take up any work. There is nothing stopping you from looking for prospective employment, but as mentioned, you will not be able to take up any employment.
Further, you will not be able to switch from a visitors visa into a different category of visa whilst in the UK. You will need to return to your home country or the UAE to make the application from there.
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If you have any further questions, please do not hesitate to ask.
No your children are not entitled to free NHS care. Any health care would have to be paid for. They should have travel insurance which covers them in the event healthcare is required.
Any offer of employment will require a company in the UK to sponsor your application. The company will have to issue a Certificate of Sponsorship.
No they cannot attend school if they are on visitors visa.
Yes you can. If you obtain a tier 2 Visa, you will be able to sponsor your children to join you in the UK.
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