There is a case where a person born in england and held the UK citizenship but at the age of 7 he/she left the UK along with her family into another country and never entered the UK for almost 12 years is he/she still considered as a british citizent or he/she have to go throuhg the process of getting a new citizenship
Is there an absence limit to withdraw the British citizenship from a person born there?
No. One cannot lose British citizenship simply for being absent from the UK. It's only possible to withdraw someone's British citizenship if their presence in Britain is found to be "not conducive to the public good," or if they obtained it by fraud. See https://www.thebureauinvestigates.com/2016/06/21/citizenship-stripping-new-figures-reveal-theresa-may-deprived-33-individuals-british-citizenship/.
