What about no apostrophes?

Answer 1

An apostrophe shows possession OR a contraction.

Apostrophes are important in understanding English grammar. Without apostrophes, sentences could get very confusing. Also, although a writer can use full words, in informal writing, it may make more sense to use can't instead of cannot, don't instead of do not, I'm instead of I am, he'll instead of he will, etc.

Example of a confusing sentence without apostrophes:

The teenagers mothers step-aunt took them to a concert given by the mothers favorite singer, whom the teenager considered to be an "has been".

In the above sentence, without apostrophes, the words 'teenager', and 'mothers' would both be read as PLURAL, e.g. more than 1 teenager and more than one mother.

The sentence should read:

The teenager's mother's step-aunt took them to a concert given by the mother's favorite singer, whom the teenager considered to be an "has been".