One of the most difficult aspects of learning written Mandarin is it's practically and finding the opportunity to use it. Most people now communicate by mostly phone or internet, and there are far fewer chances to write with a pen and paper than there were before.  Unless you are still a student, you may find that you simply do not use handwriting all that much any more.

Chinese is also one of the oldest languages and, therefore, one of the least streamlined communication technologies. Most societies dispensed with characters and hieroglyphs long ago, and instead adopted more recent improvements such as alphabets on phonics. The Chinese system is a particularly clunky and clumsy method, which perhaps explains why much of the society still lags behind in so many other ways, too.
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