my parents in their 60s will be on their own in Milan for the day. They will probably stay in the centre around the Duomo area. Can anyone recommend a nice restaurant where they can sit down, people watch and have a nice lunch without being rushed? Ideally not too expensive.
Apart from the Rinascente is there any other big department store they can look around?
Also is it easy to find public toilets in the centre?
Other ideas of what they can do during the day would be appreciated.