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National flags serve no real purpose nowadays: they are useless

What do YOU think?

Wordchecker
national (adjective): relating to a nation or country
flag (noun): piece of cloth used as a symbol of a country
serve (verb): perform; have; be of use in achieving
purpose (noun): reason for which something exists
nowadays (adverb): today in contrast to the past; these days
useless (adjective): unable to achieve an intended purpose

see also: Flags

I don't think flags are completely useless. The essential purpose of flags I think is to able to identify its holders. And sometimes you may encounter a situation when other means of identification are impossible, particularly when you're in the long distance. In this case, you can't see what is written over-there (on a ship, for instance), also when is to difficult to see an emblem or recognize sound. So, as you see, some narrow use of it do exist.