I suppose just simple words could answer it: everything depends on your effort in that.

scripture systems are divided in: alphabets, syllabaries, pictograms, basically. It is not really difficult to learn some of them, specially if you may use them from time to time. With good practice or teacher wont need more than a week to learn to decipher an alphabet or a syllabary. I mean only the sounds they represent, not the language behind. Pictograms/ideograms use to be in some big amount, so that rule doesnt apply here. I can read latin alphabet (with all the variants i ve learnt: polish, croatian, swedish, danish, turkish, etc), I can read greek, I can read cyrillic in some variants (serbian, bulgarian, russian), I can read arabic alphabet in some variants (arabic, farsi, urdu) and some time ago i learnt some hundreds of chinese ideograms, but now..well. Except for the last, it took me not much time to learnt them. Now, if you ask me if i speak, understand all that i read in these languages, etc, the answer is NO. For instance, i never studied greek, so i am unable to speak it, although i may say something aloud in greek but........

I propouse, -" No", - it is not too difficult. Had you do not learn the greek alphabet for mathematic studies at your school? - it is not difficult.. Japanes kanji? - it not too numerous, - just about 2000 for the most cases. Russians letters - ;-) Do you cannot remember just a 33 (russian) letters? Really? ;-) How much an english words do you know? ;-)))) Good luck! P.S. I think a foreign grammatics much more hard for learning than a scriptures. Viam supervadet vadens - Дорогу осилит идущий. http://bomoonlight.ru/azbuka/

cyrillic letters are in many regards similar - this is not the problem you should worry about learn grammar and suffer! ^___^ but do not mix oriental languages here - the characters are the greatest pain ever invented

No.