I saw in the comments that 'no one enforces' the loitering thing, so please know that over 10,000 Americans are accosted by police every year for "loitering", and many of these situations end in injury or death. The crime of "loitering" itself has incredibly racist roots, and today still serve as a blanket excuse to harass marginalized (usually poor and/or Black) communities. (TW in this post for text mentions of anti-Black violence, visuals of arrests)
For example, these two men were arrested while waiting to meet with a real estate broker. A white witness at the Starbucks said staff had no issue with her sitting there for an hour under the exact same conditions, but as soon as PoC came in the staff treated them completely differently:
Sadly, accusations of "loitering" have led to deaths. Amadou Diallo was shot at 41 times while unarmed. His neighbor had called the police on him for "loitering" in his own neighborhood:
Source: https://www.nytimes.com/1999/02/05/nyregion/officers-in-bronx-fire-41-shots-and-an-unarmed-man-is-killed.html
"Loitering" isn't no big deal, and if you think no one enforces it that only means it has never been weaponized against you. For other people it has been a literal death sentence.