I've never been to Beijing but I have visited two of the other tier one cities and I can assure you wet markets still exist there.
I gather the one in Wuhan wasn't supposed to either, but either enforcement was lacking or they were paid to look the other way.
https://www.npr.org/2020/01/22/798644707/why-wet-markets-per...
One interesting point was they had tried to discourage these markets in the past and replace them with supermarkets, but people didn't want to switch. These markets offered food cheaper, people like them, they might offer opportunities to socialize, and they offer wild animals which are traditionally viewed as healthy and a sign of wealth.
Of course, the Chinese government can do a more authoritarian crackdown on it than what they tried in the past. Also, maybe this outbreak could change public opinion.
- Not really an expert, might be wrong.
Edit: typos
30 years ago yes, but not anymore.
https://data.worldbank.org/indicator/SI.POV.DDAY?locations=C...