What age can a child ride in the front seat of a car?
That depends entirely upon your local rules of the road. In most place it's age 10 over 4' tall and about 100 lbs in weight.
What age can a child ride in a booster seat in the front seat in kansas?
What age can a child ride in the front seat in a car seat in Texas?
In Idaho, you have to be above 4 foot 8 inches, or over 90 lbs.