We may have been lucky, but no major things broken or stolen at our let.
We live on the same site, and some areas are communal ie we have a fully kitted out cellar storing bikes/ skis/ swim wet stuff and allow guests to help themselves to tools to fix bikes, or swim or beach equipment like beach deckchairs/ beach towels/ arm bands.
We have boxes with age appropriate toys/ children’s equipment in so guests can collect what they want from those.
I think in 5 years we have only had a few glasses smashed ( perfectly normal accidents) , and someone took the bathroom bin once. Everyone seems to really take care of the property and leave it how they would hope to find it. I don’t expect people to clean etc, but nobody has say borrowed highchair then put back filthy, or left anything majorly dirty. Just normal dust/ crumbs you expect after a few weeks stay.
One thing I do find annoying is the amount of people who ask for more people to stay. We clearly say it’s a 2 bedroom property, that sleeps 4. There is space for additional x2 babies in travel cots if needed, no extra cost. So why I get 101 people ask if we happen to have space for 5 adults, 8 children’s and some pet rabbits baffles me. We cater for 4, so dining seats 4, living space 4, garden 4, kitchen has x8 of everything etc..