A child support device, comprising: a base member adapted to rest on a support surface; at least one upright frame member ascending from the base member; a cap with a guiding channel therethrough arranged at an upper end of the at least one upright frame member; a seat assembly (140,145) suspended from the at least one upright frame member; at least one support member extending through the guiding channel of the cap and having a first end attached to the seat assembly and a second end configured for repositionable engagement with the at least one upright frame member to adjust a height of the seat assembly relative to the support surface; and a coupling component located on the second end of the at least one support member and a receiving component mounted to or integrally formed with an upper portion of the at least one upright frame member, wherein the receiving component defines a plurality of receiving sites, each corresponding to a different height adjustment of the seat assembly, wherein the height of the seat assembly is adjusted by engaging the coupling component with a selected one of the receiving sites; wherein the receiving sites of the receiving component include at least one of notches and slots; wherein the coupling component comprises a tab member adapted to be received in one of the notches or slots; and wherein the tab member has a smaller pair of transverse slots through which the at least one support member is threaded, and a larger axially extending slot configured to fit over the at least one upright frame member and allow the coupling component to slide up and down along the at least one upright frame member. a base member adapted to rest on a support surface; at least one upright frame member ascending from the base member; a cap with a guiding channel therethrough arranged at an upper end of the at least one upright frame member; a seat assembly (140,145) suspended from the at least one upright frame member; at least one support member extending through the guiding channel of the cap and having a first end attached to the seat assembly and a second end configured for repositionable engagement with the at least one upright frame member to adjust a height of the seat assembly relative to the support surface; and a coupling component located on the second end of the at least one support member and a receiving component mounted to or integrally formed with an upper portion of the at least one upright frame member, wherein the receiving component defines a plurality of receiving sites, each corresponding to a different height adjustment of the seat assembly, wherein the height of the seat assembly is adjusted by engaging the coupling component with a selected one of the receiving sites; wherein the receiving sites of the receiving component include at least one of notches and slots; wherein the coupling component comprises a tab member adapted to be received in one of the notches or slots; and wherein the tab member has a smaller pair of transverse slots through which the at least one support member is threaded, and a larger axially extending slot configured to fit over the at least one upright frame member and allow the coupling component to slide up and down along the at least one upright frame member.