Which is a VERY good thing.

You can fabricate replacement parts out of items available in any hobby shop or on-line.

The ability to use standard covering means that your repairs leave the plane looking as good as or sometimes BETTER than new.... unlike the very poor repairs that foam planes endure.

Foamies can be glued back together if they happen to break "just right" and you find all the pieces, but they look awful unless you engage in a lot of filling, sanding & painting.

Most foamies look like trash heaps after one season of hard flying.... and you have to treat them like they are made of glass to avoid permant dings.

Balsa/Ply planes can practically fly forever if you invest a bit of time as some of the prior repair photos in the Stik threads attest to.

That "foamies are easier to repair" is merely a marketing myth.