The joy of railways is shared by millions | Letters

That Thomas the Tank Engine has a legion of grownup superfans – the subjects of a new documentary – is no surprise to Rev David GibsonAlthough a not a full-on Thomas the Tank Engine fan, I have for 65 years been an out-there and unashamed enthusiast for anything running on rails (‘Thomas the Tank Engine clung to me like a disease’: the film about the choo-choo’s global grownup superfans, 22 July).My wife and I sometimes do front-of-house at a heritage railway&n