The new Labour Party leader castigated the Government in a Sunday People column for allowing budget cuts to affect children's public play areas, saying they should be "essential, not an optional extra".
"The UN Convention on the Rights of the Child recognises a right 'to engage in play and recreational activities appropriate to the age of the child'. But for many local authorities there is now no budget for maintenance or improvements to play areas." He added that there is "no greater investment a country can make than in its young".
The Association of Play Industries (API) welcomed Corbyn's proposal to add responsibility for national play policy to the role of shadow children's minister. API independent chair Mark Hardy said: "Play lacks a political champion so any move to address that and to improve the health and well-being of children can only be a good thing.
"High-quality play facilities provide children with opportunities to be active outdoors. They also bring wider health, social, economic and community benefits. We believe play is an important part of the practical solution to address the physical inactivity crisis."
The API is a founding member of the All Party Parliamentary Group for a Fit & Healthy Childhood, which has also called for the appointment of a cabinet minister for play. It also recommends a "play duty" similar to that introduced by the Welsh Assembly in 2014, obligating local authorities to provide sufficient play opportunities. The group will publish policy recommendations in October.