Supposedly it is in the first hour before they officially open. However, I once got there 15 minutes before they were to open and found the place packed with many people - most appeared to be in their 40's or 50's with a few in their 60's or 70's. They do not seem to be taking the guideline seriously. That was, however, before the manager started standing at the door. Not sure what it is like now.
I think so because I saw many times people with different age so I think it's not a problem
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