Unreasonable to send children back home after living 7 Years in UK

It is long period of time and it is extremely unfair with them to leave the country.
It will be difficult for them to restart their education in a different environment. Mostly they do not know the language, If they can speak but it should keep in mind , it is not only speaking necessary to carry on study in THEIR HOME country, they also need read and write the same language which home office totally ignore IN THEIR DECISIONS.
Mostly home office remix the culture and religious practice, but these are the two different things.
The children can not find the same surrounding environment, where they have brought up and have spent their seven years of life.
So to expect reasonable for them to leave the country after 7 years is unfair.

Where a family with a child or children who have lived in the UK for 7 years or more apply for leave to remain on the basis of paragraph 276ADE(1)(iv), there is an increasingly strong argument that the applications should normally be granted if the period of residence is satisfied and there is no bad behaviour by the applicants, they are well settled and integrated and therefore it would not be reasonable for the child or children to have to start over with their life again in another country.