I've never heard of this but my mil was telling my my son should start school around Easter now he's just turned 4! I've told her he can't until September 23. She's arguing that app my husband started school the easter after his 4th birthday he was just kept back a year because of it. which I don't understand why you would do that when they can just go pre school or nursery. but she loves to be right about everything and tell me how I should bring up my children!!