LONDON (Reuters) - A British mother plans to take legal action because she says a school rule insisting on skirts instead of trousers means her daughter is suffering from the cold in winter. Clare Hale believed Wickham school in Gateshead, northeast England, was being sexist in applying the rule and she would fight the case for her 13-year-old daughter Jo under the Sex Discrimination Act, newspapers reported on Monday. "It‘s about practicality. It is cold here in the winter and Jo is coming home absolutely freezing, wearing three or four pairs of tights," Hale was quoted as saying by the mass circulation Mirror tabloid. The school said its dress code was important for discipline and that most parents agreed.