The States Assembly has voted against a change that would have made GP appointments free for all children in Jersey until 2021.
Deputy Carina Alves had proposed the interim measures while a more affordable primary care scheme is devised by the health minister for the start of next year.
Deputy Alves told the States "good health should not be determined by income".
A reduced fee of £10 for children's consultations was introduced during the coronavirus crisis, but is due to end on 9 August.
It coincides with the return of GPs to private practice, after the States agreed to directly employ them during a four-month period.
A proposal to axe a £120 fee for a women's 'pregnancy package' was also rejected by the States.
In February, it was voted that the health minister must devise a plan which reduces "financial barriers for patients who are financially, clinically or socially vulnerable" by 1 January 2021.
Deputy Richard Renouf said he expected to lodge his proposition in September.