Leaving aside any physical ability etc., there are a bunch of places that I might have done 30 years ago but wouldn't today whether because of an explosion in p

Leaving aside any physical ability etc., there are a bunch of places that I might have done 30 years ago but wouldn't today whether because of an explosion in popularity or just because it feels as if it would be less safe. (Of course there are also places in e.g. Eastern Europe I might have been less inclined to travel to at one point.)