I have a disabled son who has started to try and get out of the car whilst the vehicle is in motion. I thought I had a central locking button on my car door that would stop the doors being opened but it seems it stops people outside opening the doors but releases the lock inside as soon as someone pulls on the door handle inside. Is there a car with a different system that would prevent my son (who is 17 and has severe learning disabilities) from opening his door and jumping out. Thankfully I was turning into a car park today so at a very low speed but I am now terrified of it happening again.