A child-supporting device including a child-seat assembly mounted to and supported by a rocker frame assembly. The seat assembly includes a backrest, a footrest, or both, pivotably adjustable between reclined and inclined positions. A recline adjustment mechanism is operable to selectively lock the seat in the reclined or inclined position for use, then release the seat for pivotal adjustment to the other position. In some embodiments, a linkage interconnects the backrest and the footrest so that pivoting one of them synchronously pivots the other one. And in some embodiments, the footrest is detachable and a quick connect/disconnect mechanism is provided that permits operation of the recline adjustment mechanism when the footrest is attached.