Indeed, I've met with incredibly kind people on my travels- especially when I used to come and visit my parents with 2 small children- the first time with a 6 months old baby and a toddler. In those days, the journey from the Midlands to SWitzerland was really tough, in the pre Eurostar days, in the 70s.
AGain, from those one might least expect it. That first time, a young punk with a massive Mohican, tattooes, Doc Martins and braces and a ring through the nose. He took a suitcase and held my toddler's hand whilst I carried the baby in the carrier and another bag, in London, in Dover and then Calais and across Paris - wonderful.