IANAL. Could you explain how the different licenses would be applicable to Scratch projects/resources? How is the current license not good enough?

The license page wrote:

Share — copy and redistribute the material in any medium or format

Sure, this is fine (given restrictions described later).

The license page wrote:

Adapt — remix, transform, and build upon the material

So basically what Scratch completely supports – looks good to me!

The license page wrote:

Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

So give credits to the creators of the original project/resources. Sounds good.

The license page wrote:

ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

So remixes of a project/resource with the SA license should also use the SA license. Useful for preventing all sorts of combobulation incompatibility issues with other licenses.

Removed

Support for the following
Attribution-ShareAlike 3.0 Unported
Attribution-NonCommercial 3.0 Unported
Attribution-NonCommercial-ShareAlike 4.0 International
MIT license
The Unlicense

No.
Do you think a 8 year old would understand what are licenses?
Also if this would be added it can't be licenses that no kid ever with understand.
It should be like:
Choose license:

<Your own project>
<Part of project is taken from another project>
<Part of project is taken from internet>
<Project is remixed>

Firedrake969 wrote:

Open source doesn't mean you can remix though

The “Open Source Definition”

Edit: Support for the option to license Scratch projects under any of the licenses listed in OP

cheddargirl wrote:

I didn't go over all the licenses in complete detail, but a quick read shows most of the licenses you suggested are geared towards licensing software. The problem is that a Scratch project itself is not really software in itself, per se (as you would need the Scratch editor in order to use it), so the suggested licenses are probably not applicable here.

I think Scratch projects are software, and I think that the same problems that apply to using CC licenses on software apply to Scratch projects, because someone could use a Scratch compiler and then distribute Scratch projects without source, so people cannot easily remix it!

MeIoetta wrote:

Do you think a 8 year old would understand what are licenses?

No, but they could, and it doesn't matter if there's a default