>>17637414 lb
This will cause traumatic brain-wiring in children this young because of the neuroplasticity of the brain at this stage of development. It's not something you just 'get over'. If I told you to forget a color you wouldn't get far, and even if you did somehow, seeing the color somewhere would trigger everything related to it so it's basically impossible to avoid. This is how traumatic memory and triggers work, except the trigger is your fellow human being. On top of that, traumatic memories are almost dream-like and super vivid.
This day care centre sets up children for a future of panic attacks and general anxiety. Anxiety isn't per-say related to depression as you can cure it with exercise and diet but not being able to leave the house and get sunlight or be able to talk to people without freaking out can bolster depression for sure.