Sand is not an infinite resource. It's crucial for both protection (if you remove all the sand from the beach, there will be nothing to cushion the waves and currents and etc. and it will result in more erosion, which can be deadly for any constructions nearby) and construction.
As such, it's completely normal that you can't just take sand or stones from many beaches. The very famous Étretat town in France with its accompanying beach and rocks, have a very strict "don't take souvenirs from the beach because you'd be actively destroying it" policy.
Sometimes someone has paid money to place the sand at the beach because it wasn't a sand beach from the start. So no, you can't go fill your sacks with sand anywhere you like, not even in Sweden were we can pick berries in the forest for free. Stones, trees and sand is not allowed without permission.
Not particularly, it's prohibited in US National Parks, National Historic Sites, National Memorials, National Wildernesses, National Seashores & Lakeshores[0], US National Wildlife Refuges [1], Most US State parks.
Canadian National Parks[2] and most Provincial/Territorial Parks.
So like less than a tenth of one percent of the US coastline. Literally so uncommon in the US I'd have to go well out of my way to find a section of beach where this is applicable.
Literally none of that is illegal at any of the beaches I've been to (east coast US). Not only does nobody care, there's frequently nobody around to even notice in the first place.
Yup! I've read a number of papers about this over the years, and it's a big chunk of this whole landscape. The old saw: you either pay for the product, or you are the product, is right on target here.
Gaining attention and clicks from a person is much easier if that person is afraid. And/or angry, among others.
I remember years ago getting mysql, php, nginx, dovecot, postfix and horde to work together to get ActiveSync to my android. Took a long time and lots of reading but in the end it felt great. Then a week later a horde update broke it.
In hindsight it's probably better to spend the money on a hosted solution.
Just an anecdote of mine. I'm sure there was plenty of drug use in other provinces but my personal experience was in the Helmand. I try not to talk about other places and units I don't have experience in.
Wow I didn't know it turned out so bad. Even then reddit isn't much better either. Damn the internet has turned into a cesspool or maybe I don't remember it was a cesspool 20 years ago too.