I'm going to email the owner of the playplace today as I know her from school and she wasn't on site when this happened, I just wanted to get some perspective before I send anything.
I went to a playplace today that we've been to before with my 3yo and 1yo. We went today as they had a summer fair day and had games on like hook the duck, a treasure hunt and stalls for a few local businesses.
So we get there and it's pretty busy and hot so the front doors that lead directly into a carpark are open. I paid for the dc and then entered the playplace via a magnetic gate which I closed behind me. We found a seat, took both dcs shoes off and went to play with 1yo in baby end. 1yo however wanted to follow her dsis into the bigger end so I took her to our table so I could take my shoes off, whilst I was doing this 1yo ran towards the gate which I then noticed had been left open by a family who had just come in. She ran past 2 members of staff and two adults who were paying and out the open door into the carpark. Thankfully I was straight behind her and caught her before she got onto the road, but thats not really the point. I came in and said to one of the staff that gate should be shut and she sort of half-smiled. I was shaking and went back to my seat to calm down. We played for about half an hour but I couldn't relax worrying about the gate and so left and took them out for lunch instead.
So, is this my fault as I let 1yo wander off while I was taking my shoes off under the impression she was in a secure space or the staff's fault for not ensuring the gate is closed after every customer. I feel sick thinking about what could have happened to my dc or someone elses, I wish I'd complained in person now. :(