For me, locking my doors is for MY safety and my children's safety. It has nothing to do with hiding things. I am a 125lb woman alone with 8 children in a home that is a known home daycare...I'm not taking a risk on having someone break in. Personally, I was more comfortable knowing my HDCP locked her doors when my older children were in daycare because I knew they were safe.

I also believe it is a safety issue to have parents join in the dc activities if they don't have a valid police check. Parents require it of me and any assistants I might have, and so it is something I require of anyone who will be doing more than drop off/pick up.