The Brighton based council is raising awareness of the current gender and trans issues
A British council leader has said he is "proud" of a letter asking children aged four to choose the gender "they most identify with".
Brighton and Hove City Council wrote to thousands of parents asking them to confirm their primary school places this week.
It wrote to parents urging them to support their child’s choice of "gender identity" and asked them to leave the form blank if the child had "another gender identity" altogether.
Brighton and Hove City Council reportedly wrote: "We recognise that not all children and young people identify with the gender they were assigned at birth or may identify as a gender other than male or female, however the current systems (set nationally) only record gender as male or female. Please support your child to choose the gender they most identify with. Or if they have another gender identity please leave this blank and discuss with your child's school."
Tory MP Andrew Bridgen told The Sun the letter was "utterly ridiculous".
He said: "Schools should be teaching kids to read and write, not prompting them to consider gender swaps".
Council Leader Warren Morgan defended the letter, tweeting: "I'm proud my council is leading on #Trans work. If it helps even one kid be themselves or tackle bullying, then headlines don't matter".
Cllr Emma Daniel, head of Brighton's equalities committee, said she was aware of "concerns" over the wording.
She told The Sun: "We have inserted the additional text about gender identity in response to calls from families, young people and schools to show an inclusive approach. There are increasing numbers of children and young people nationally identifying as trans".
She added: "We will review this to see whether we can make it clearer that we consider discussions around gender identity to be an option for parents rather than an obligation".