On Wednesday i went to London with my children. A man offered me his seat on the tube. I am 55 with white hair but I don't think I look infirm. DD reassures me he was being kind. Today i go to get on a bus and a lady tells me I can't as it is not 9.30. I get on bus pay for my ticket and then realise she thought i had a bus pass. Please tell me I am not alone in this or do I need serious help?