Mexico can also be not so good. My "wife" (not married) was working in Quintana Roo state. She had a temporary resident ID that was expiring a few days before her flight back to Argentina, so she went to the local bureaucrat to have it extended and not become "illegal". They told her "For a few days? And having a return flight? No need. All is well." She then went to Mexico City and took a bus to visit a friend in another city nearby. Not long after leaving Mexico City, a police roadblock stopped the bus, cops jumped in and started asking for people´s IDs. It didn´t matter how much my girl explained that a migration official didn´t find necessary to extend her ID´s validity. They pulled her out, took her belongings, and put her in a cage for 12 hours, in the middle of nowhere and with no food, coat, blanket, phone, nothing. After that she was transferred back to Mexico City and finally to Iztapalapa, a district where there is a detention center for migrants. They kept her there for a week or so, until we finally got to the right person to do the right phone call, which required a ton of other calls and some money. The system can set you a very easy trap.