Yes, I agree with you. Many foreigners in China barely speak mandarin. Some 阿姨 when they heard a foreigner speaking mandarin they start talking with us automatically, and I was even in a situation where they introduced me to their daughters lol. China is good for foreigners who can speak mandarin.
About the life experience in China, I’m not sure I will be free to talk about it right now. I like keeping my life here as a secret lol. Hope you get what I mean, maybe in few years I can open another account for my life experience as a foreigner in China.