So Beverley, you have not been to China and don’t want to go! Great contributions from you then!!!
OP - I did a fairly expensive tour with an expensive tour operator. There are cheaper options such as Exodus and Wendy Woo. If you find you have a specialist interest, there are specialist tours available at a price. When I visited the museum of Chinese arts in Shanghai, I was blown away by the minority people’s costumes and dress. I would love a tour to see minority peoples. They exist, but at a price.
There are elements of being a tourist in China that are a bit annoying. The Chinese do tour in large groups often with a guide with a loud hailer. There could be lots of them at the Forbidden City for example. However with a good guide book such as Lonely Planet, you can do a good job yourself.
For what it’s worth, we never visited a yuk toilet. Do have wet wipes with you and a loo roll just in case, but facilities were modern everywhere we went. Staying in a decent hotel is a treat at the end of the day.
I was immensely impressed with the museums we went to. Full of marvellous objects and I now know my Tang Dynasty horse from my Ming vase!
Closing your mind to the fantastic art, inventions, and discoveries made by the Chinese is a real shame, Beverley!