Yes many have seen magic and know its real. This does not mean you understand it. It takes the right amount of knowledge to understand what magic is, what it can do and what's being done. 

There is no such thing as a safe travel route.  The best way to get to the next location is not as simple as you may think. From what path to take to avoid everything from dangers to unpassable natural issues. 

Most cities and towns had guides you can handle. They sell services form information on routes to actually going with you to help ensure safety. 

Many of these guides will set up travel groups so that a larger number of people can travel together for safety. 

Traveling by ship is required for crossing to other lands. However deep sea is avoided due to monsters.  Save ship routes that avoid these monsters are a guarded secret. Often most navigators only know one or two safe paths. 

These paths never go into deep sea. 

Not every ship that travels off theses paths are destroyed, Many many are. Too many ships risk another route to never be seen again. 

Most only know about his or her own home nation. Many do not even know what all nations there are, where they are, or even how big they are.  Let along how they live or anything about them. 

Knowing about other nations and the details within is knowledge to be earned.   Some experts in locations will sell this information for would be travelers. 

Undead are real, and to be feared. Most nations outright outlaw them.  Even the few that allow them consider uncontrolled unintelligent undead to be killed on sight. 

Some undead do have a mind of their own and tend to be evil. 

There is no known nation of undead. 

Most have herd of the Mystic war, some still alive took part in it. 

All that happened and all that was lost in the war is not so well known. Nations were wiped out. People killed on mass.   The extent of lost cities is unknown, but they are there. 

There are lost ruins from the war with untold treasure. From art, weapons, magic items and wealth nations hid. 

This has made a job of finding and looting these sites. Even the location of them is a commodity to be sold. 

Many nations pay for the recovery of its lost past. 

Some nations make its political relations well known.  It is rare for this to be all of the story.  Alliances and deals are made and changed often. Some kept secret.  

This can range from trade deals to military treaties.  

The truth of relations between nations, both good and bad, are kept secret for political reasons. Many times, false information is promoted by the nations to throw of the truth. 

Most trade is done by individuals that make it his or her business to set up trade routes.  These relations and routes are a well-kept secret. 

Some are backed by the nation or even set up by them.  

Regardless trade is normally taxed. 

Most know monsters are real. Stories of them are ever present. What monsters are out there is a less guarded knowledge.  

Drom natural forming beast to monstrosities formed by magic monsters come in many forms.  Uncivilized land is full of them. Sometimes they make way to civilized lands. 

Study and hunting of monsters is a profession in its own right.  Some rare materials can be harvested from them. 

Dragons are rare. However, the ones that are known tend to be a force to worry about. Larger dragons seem to have a layer that is impossible to find. More so some dragons will show up that have never been seen and never seen again. 

Crime is ever present. From theft to scams, violence and worse. There are people out there with bad intentions.  The wise know this. 

There are organizations and guilds that focus on these crimes. From thief guilds to hired assassins.  

Most nations fight this crime how they see fit or choose to use it for an overall goal. 

Gods are real. Though each area may have a few that are preferred. All the gods have influence all over. 

Though reports of gods visiting mortals do happen, the gods are rare to be seen in the mortal realm. 

Any time in history a god took direct action many other opposing sides more than ruined it.