Every day millions of people travel by flight, for this they have to reach the airport about one to one and a half hours ago. Before climbing the flight, you have to undergo a variety of security checks, after which the process of check in starts. ,
After checking in, you have to sit in the waiting area and after that the flight boarding will start. Once you check in, you have to stop in the same part of the airport where the boarding process starts. You cannot get out of it.
You may be allowed to go out in an emergency, but for this you have to talk to the authorities. However, you will not get this facility at all airports.
If you go out after check-in and take permission to do so, it may take several hours to get your goods. If you go out of the airport after check-in and then come back to catch the flight. Will have to go through security check again.