there is hardly anything kids can do in China, one of the main reasons why I moved away after my kid was born (besides dangerous toxic food and air)
while here in Europe I have within 10 minutes walk like 3-5 playgrounds for kids to play, in China I would have 0 even if we walked for half an hour, there are literally no playgrounds for kids at all, you will find exercise equipment for adults/old people in parks, but NOTHING for children and then they are surprised why people don't have kids in China
the fun with kids in China is meant to go to mall, pay fee for some amusement park and let kids play there, same with any other kid oriented facility, come, pay ticket so kid can play, but no public playgrounds, heck it's even difficult to find public football/basketball playgrounds, again in Europe I have at least 2-3 basketball courts around 10 minutes walk from home, in China impossible
been there last summer already with bigger kids and they had literally nothing to do when visiting in-laws in their miniscule 600-900K town (Beijing suburbs), we found some kids amusement park in walking distance at the end of trip, but nothing to do anywhere, they could walk to park where there was nothing to do for kids, so only time they could do something interesting was walking around Beijing, checking sights, maybe playing pingpong
Same, although we left before our kid was born due to Beijing's pollution level at the time (it is better now, but still bad).
We found stuff to do last year when we visited Beijing, but we were closer to center city and ya, no playgrounds outside of a few higher end apartment communities. We have a trip planned this summer but the kid is spending 2 weeks in a Chengdu summer camp that is pretty activity loaded.