Like others have already said, it's pretty much not allowed unless you are sharing the account with your immediate family (mother, brother, etc). Also, I don't get what you mean by “Illegal”. Law enforcement won't show up at your house and give you a nice little arrest warrant if you share a scratch account. But by “Scratch Rules”, it's pretty much not allowed. If you are sharing an account with someone who is not your immediate family, decide on who the owner should be, and transfer the account to their ownership.
It's not allowed, but it's not illegal.
Now, with that in mind, I wouldn't call it illegal, the Feds aren't going to show up at your door knocking since you shared an account with your friends on a kids coding site. It is against scratch guidelines however, and it's not allowed, if you'd like a bit more information why, or just want to know more, I'd recommend this helpful post! (:
As others have said, it's only allowed with family. You can't share it with anyone else besides siblings or something, even if it's an IRL friend.
Not allowed, yes, except when its not (family).
But as others have pointed out, it is against the scratch rules and you would get banned.
It’s not ‘illegal’ to share accounts. You wouldn’t get in trouble with law enforcement.
A wise man once said these words:
Or perhaps, that “legal” doesn't just mean “complies with laws”, and can have a more general meaning or more than one meaning? For example, if I make an illegal move in a game of chess, there's no Chess Police that are going to arrest me for breaking the game's rules, probably the worst that happens is that the opponent will scold me and undo my move, or maybe I'll get a nice tableflip.
As another example, if you've ever used Windows 9.x and had a program bomb out with the infamous “illegal operation” error, that doesn't mean that the nonexistient Cyber Police are going to arrest the program that crashed. It just means that the program did something that could cause issues if it kept going, and Windows stopped it to keep the system running and any files on the hard drive safe.
(Also, OP, if you are actually a native English speaker, sorry if the assumption I made offends you. I didn't mean to offend, so sorry if it comes off that way.)
Have you maybe considered that English might not be their first language , and that “legal”, for them, may be the best way to describe something that doesn't comply with the language's rules?