since 1 mth give him car carrier and turn 1 change to car seat.
i told him that he need to be stay in car seat and will bring him go gai gai
fortunely, he very co-operate with me. so far very enjoy bring him out alone

my son being train to be in car carrier / car seat since 2 mths old
as we need to travel 2 hours back to hometown
so it become a must for him
when 1 yrs++, i being told him that if he dont sit in car seat and put on the safety belt, he will be catch by the police and cannot sleep with daddy & mummy
so far so good to said, he is follow the instruction till now 2.5yrs