Would you help a mum onto the bus?

Tweet

My sister has two young children, an energetic two year old and a one year old (though the one year old is still the size of a 3 month old due to health problems). Her two year old can walk fair distances though quite often my sister has to take the huge double buggy if they are going to be out all day. She does not drive either so takes the bus many places. Many times my sister has struggled onto the bus with the buggy and toddler and baby as well as sometimes having bags plus all her little ones medical supplies. The other day she rang me in tears as she had struggled a lot getting on to the bus to take her daughter to her checkup and many people on the bus were tutting. The driver sat there and after a few minutes asked my sister to get off of the bus to which she did feeling upset and humiliated and missing her daughters appointment. My question is why couldnt someone have helped her onto the bus. Itwould have taken a matter of minutes to help and everyone would have been happy. I felt disgusted that no one offered as I certainly would have. Would you help someone in this situation or would you be one of the ones getting annoyed? What are your thoughts on people who simply sit there?