This would depend on the age of your child.
All children should ride rear-facing in back seats until they are 2 years of age or until they reach the height and weight limit of their child restraints. When children reach the height and weight limits of their infant seats, they should be moved to convertible seats, but should continue to ride rear-facing for as long as possible.
However, when your child reaches the rear-facing height and weight limit of their child restraint, they should be turned forward-facing in a convertible or another forward-facing child restraint.
facing the backrest of the seat it is on
The risks are that your child may be too big for the seat. Make sure that you are sizing the seat correctly for your child. And remember, your child should face backwards for as long as possible.
as long as it is possible to have the seat face backwards it should face backwards. A child has a heavy head and a weak neck so if you should crash there is 90% less chance of death by neck injuries when facing backwards in a seat with support for the head.
Not necessarily. If I child is smaller than 1.30 metres it should be seated in a child seat. If not, than an own seat is not obligatory
if a child were to sit in the front seat and an accident happened the air bag would inflate and hit the child in the face at a good velocity to bruise, and crack not break the bones of a grown adult. the airbags would kill the child crushing their skull.
the child should be at least 9 to ride in the front seat
When they are around 2 and have outgrown their child seat. They should continue to use a booster seat until they reach the height of 4 foot 9.
it usually depends on the height and weight, but you place them in an approved seat at age 5.
In Minnesota, it is recommended but not required for children under 13 to sit in the back seat when possible. However, if a child must sit in the front seat, they should be properly restrained in a child safety seat or booster seat appropriate for their age and size.
at least when there ten.
A child should use a car seat until they are ready for a booster seat you will know when its basically like clothes they will outgrow it. they should be in the booster seat until they are 4 foot 9.
If your talking about the booster seat without a back then NO, It is not safe for the child to ride with only a lap belt.