Sherrard, the do tell you the sex of the baby in Stoke Mandeville. 5 of my 8 nephews and nieces were born there and the parents were told the sex with all of them (although it wasn't always right).
However, a few years ago I worked with a guy of Indian appearance. When his wife was pregnant they wouldn't tell them the sex of the baby because there are concerns about what some cultures may do when they know they are having a girl. This was despite the fact he is as English as me and his wife is white.