I don't think that's much of an issue on this side of the pond. Trust has been low enough for a long enough period of time that packages don't get left on porches.

That's area dependent, there are multiple shipping companies that have options for leaving package by the door step and rarely are things stolen. It's completely down to where you live.

I'm quite curious to know where this is a thing, and whether people actually pick that option. FWIW, I live in Paris and that's also an option sometimes.

My sister lives in a fairly remote town in France, and they wouldn't dream of leaving a package unattended. It's not otherwise considered an "unsafe" or "rough" or whatever area.

I'm in Denmark, in a midsize town, but I also lived in a larger city, neither places are having a package dropped on your door step an issue. I do that all the time, if I don't feel like stopping by the package pick up place on my way home. There are absolutely neighbourhoods where I would never pick that options, like certain apartment blocks. Pretty much anywhere with single family houses is fine (in my area). The majority of apartment complexes is also perfect safe, though my sister-in-law did get 25kg of dog food delivered to the apartment below her by mistake and never got the bag back.

Here in Belgium, by default they will bring it to the post office, but I've checked the option to leave it on the porch. There's a camera. Been just fine for years, in a suburb area.