Yesterday Chedraui was enforcing the 1 per family rule, no mention of that at Mega. Both stores gave a squirt of hand sanitizer and took our temps.
Most walking and riding scooters or cars in Centro are still masked up. All taxi drivers are masked as are all servers. Taxi drivers expect you to wear a mask.
We flew here on United, and no mention of any health form before, during or after.
I'm not going to screw around with the covid results on my phone when we return. Have heard repeatedly that AA's Verifly app is COMPLETELY worthless 99% of the time. I did get a text from United advising me of an app, but the lab that we got our tests from in April is 4 blocks away, ($500.00 MXN), and they offer printed results in an hour. I know that the authorities will accept my two pieces of paper, and the chance of a snafu is next to non-existent.
Edit to Add: Many 40 - 50 year olds have received the vaccine, and this week some 30 - 40 year olds are getting both their 1st and 2nd dose and yes, they are VERY excited about it.