The end of the one-child policy brought just about zero improvement in birthrates or the demographic trajectory of the country. I would not be very confident t

The end of the one-child policy brought just about zero improvement in birthrates or the demographic trajectory of the country. I would not be very confident that any of what you are talking about is going to fix China's massive demographic problems, and such policies have generally had limited success elsewhere. Additionally, with the new entrants to the workforce in 15-20 years already having been born, even if improvement was seen, you're talking many decades before you're going to have that said improvement in births be sufficient to stop the workforce from shrinking, dependency ratios getting worse, etc. China loosened it's policies about 20 years too late.