I don't think that we have subscribed to any premium service with Metro. Have been using the same "card" as before, albeit in my phone I just show them a photo of the QR. The account is linked to my wife's phone, and last we checked it was not possible for other family members to use the same account in Metro app.
But lately we use Metro's home delivery more, which is also to our door. When we go there in person, it's mostly to entertain the kid.
Also noting that at Metro (north) they seem to have upgraded their tasting station availability in recent month or two. There's regularly wider range of snacks and fruits to sample for free, occasionally wine too!
It is entirely possible that these bans will eventually extend to also adults, but my understanding is that for the time being this is not the case.
And that leaves one group of adults in the market - parents and would-be parents, who want to tutor their own children themselves.
In Chinese commentary related to these regulations it has been stressed that parenting is still allowed. It might be a dangerous leap for the powers to be to interfere, now, in what (non-political) adults do with their time, or how they raise their children.
So throw courses to these parents instead of their children. Refresh some things they may have forgotten from their school years and print some material to take home.
I had not been anywhere beyond walking distance for some time, mainly thanks to revelation that home delivery from Metro is cheaper than subway trip there.
Then yesterday went on a multi-stop subway/office trip. Arriving to local subway station, the healthcode app in AliPay notified "Health Information Has Expired", and required declaring again. Filled everything like before, including "No" to "Current Symptoms".
However, when I clicked to submit it, the app complained about "Current Symptoms" not being filled in properly.
This happened constantly - luckily wife was with me to explain the problem repeatedly at half a dozen checkpoints within the morning, usually twice because the first guy couldn't solve it and forwarded us to second guy who wasn't any smarter about it.
Today evening I checked from comfort of home, and this time it worked.
Agreed. There will be lot of such opportunities for different types of foreigners who are already legally here, and would not be risking that legal stay by engaging in such activities.
Foreign students, workers and other temporary RP/visa holders doing it without formal agreement between their institutions and PSB would be breaking immigration laws.
But permanent residency holders, and those holding Chinese nationality in addition to a nationally perhaps recognized elsewhere. No formal permits, employment, or qualifications needed.
Speaking of which, does China have some minimum age to let children make pocket money from things like baby sitting or... hmm, I don't know, play dating? I'm thinking it's time for the four year old to start contributing. Won't be playing games anyway.