Culturally, morally, it's not weak
My Polish wife objects to the EU and voted against joining it, but I argue that it makes trade and economic purposes easier and also Poland bringing its religiousness has moderated the EU (not much, but somewhat) -- and I think Croatia will add to that voice.
“I actually think economically Croatia is weak.”
_______________________________________
Well, that is somewhat subjective.
No country comes out of Communism as a roaring bull.
It has the makings of a great tourist nation, and as I recall, maybe rich in natural resources.
Of course, like any former communist country, it has to build and grow, but Croatia has all the raw materials for tourism, as well as other commercial activities.
While I did not get down there, I see it has the same or more potential as Slovakia, which is thriving on Automotive
and electronic factories, as well as tourism to the Tatras.
Croatia also has the advantage of being on the sea, unlike land locked Slovakia. I knew many Slovaks that went on holiday to Croatia to be near the sea.