I lost my android phone in the park on Thursday afternoon. It was in an area around a cabin selling hot drinks and some food. I went back but no sign of it and

I lost my android phone in the park on Thursday afternoon. It was in an area around a cabin selling hot drinks and some food. I went back but no sign of it and the cabin was closed. Tried again the next morning and they had my phone! I was overjoyed but it made me think. I had logged it out of google and had the chance to stop the SIM - but getting it working again sounded long winded so I didn't. They said they looked for emergency contact numbers, but I didn't have any set up. I didn't know you could do that, but I have added them. I later found a call to it I didn't recognise, but realised I had a business card with the phone which they had tried to contact me with, but just called the phone they already had. All in all I think I was so lucky and they were magnificently kind. So far as I know there is nothing on it I couldn't get back, but I realised that having personal information with it was probably not actually a good idea. I think I am ok with the emergency contacts because I am getting old and may need to be helped one day. I probably should have put a stop on the SIM. Not sure what else I should have learned.