Dh's cousin, her dh and their 6 month ds just visited. As they were leaving cousin got in the front car seat with their ds and no car seat.
I asked where seat was and she laughed and said they have 2 but he doesnt like it and prefers to bob up and down in the front with them.
I gave a little speech about what would happen to him if they had an accident ie through the windscreen and that by putting the seat belt around them both was the equivalent of her landing on him from a great height.
Dh said they should at least sit with him in the back to avoid being done by the police. That concerned them so she did move.
We offered dds car seat to borrow but they said no as it would mean aving to return it a whole 5 mins drive!