I’m 50 something and fat and walk around London quite a bit quite happily on commando or Dainite soles, but I did get a pair of these recently for London walking days and they are super-comfortable:
Dr. Martens 3989 HS Shoes Green 7 UK https://www.amazon.co.uk/dp/B06XBGD4..._7phIAb2FW6QJK