Summary: In an ageing society, when living standards reach a certain high level, they have this need and this purchasing capacity, which is an inevitable trend. The problem now lies in their knowledge that there are products that can bring them safer and comfortable lives, and when they know they become water. On 6 November, the Second China International Old-Age Fair (hereinafter referred to as the “Paper”) was opened at the Hiroshima Fair, with the first blurring of old-age and barrier-free...