Maybe the issue is in the terminology? In the UK, we don't call it an "outlet", we call it a "plug socket", or just "socket"; it's a socket that takes a plug, no direction is implied.
In terms of electricity and physics, this is unremarkable, the bit that probably scares people is the fact that you have a plug connected to something that's _outputting_ AC, particularly for those of us with 240V supplies.
If it were any old AC source on the other end they'd be correct, but current technology allows the output to be cut in milliseconds, faster than the period of a single AC wave, once the plug is removed.
Tangentially; if you have solar (mine's roof-mounted) don't assume that flipping the breaker means there's no power; I live in a 1930s UK home with all sorts of interesting wiring and flipped the breaker to change a plug socket, only to be shocked; literally and figuratively when it was hot.
In terms of electricity and physics, this is unremarkable, the bit that probably scares people is the fact that you have a plug connected to something that's _outputting_ AC, particularly for those of us with 240V supplies.
If it were any old AC source on the other end they'd be correct, but current technology allows the output to be cut in milliseconds, faster than the period of a single AC wave, once the plug is removed.
Tangentially; if you have solar (mine's roof-mounted) don't assume that flipping the breaker means there's no power; I live in a 1930s UK home with all sorts of interesting wiring and flipped the breaker to change a plug socket, only to be shocked; literally and figuratively when it was hot.