"For example vs Such as".

Using phrases like “for example,” “for instance,” and "such as," correctly is important. The expression for example is followed by supporting details for the word directly mentioned before it.  Punctuation varies before example words — such as, for example, or for instance. It all depends on how the word is used in the sentence, however, here we can find some hints that might be helpful.

For example and Such as

 Such as and For example

 Such as 

If you use “such as,” do not end the list with “etc.”  Mistakes are often made when using these two phrases. Here are two pieces of advice to avoid mistakes:

1- Use - for example - at the start of a sentence.

2- Use - such as - in the middle of a sentence.

Compare these two examples:

First - Children should eat less junk food. For example, they should avoid eating hamburgers and fries. Second - Children should avoid eating junk food such as hamburgers and fries. Notice that, on one hand - for example - is followed by a comma and a full sentence. On the other hand - such as - is in the middle of the sentence, followed by two nouns. You can also use - for instance (or like) - instead of 'such as', if you prefer. In short, besides for example and such as, you've got more options to use.

See more examples at: grammar-quizzes.com/punc-examples