In eras past, that may not have been a big concern, but today many parts of the world are increasingly dangerous and roaming around acting like you don't know what you are doing is a recipe for disaster.
Increasingly dangerous compared to what ?
The 1980's when you couldn't go to eastern Europe because it was Soviet bloc ?
The 1970's when there was nuclear testing in the south Pacific ?
The 1960's during the Cuban missile crisis off the coast of Florida ? Vietnam ?
The 1950's when kids practiced "Duck and cover" in preparation for a nuclear attack ?
The 1940's when there was a World War and bombs rained down on Europe ?
The only thing "increasingly dangerous" today are people's imaginations about what horrible things await them if they step outside without sunblock and a satellite phone.
If you're ever going to sail, probably best to do it while you have the chance, because if human history is any indicator of the future all this peace we've enjoyed for the past 20+ years won't last.
(Berlin wall, 1961)
(World war II, Dresden)