"Look at your cousin and learn from him!"
All of us would've heard this line atleast once in our lives. Comparison; everyone knows its not fair to compare someone with others. Thinking that it would create a competitive mind in their children, parents are using this 'formula' since ages which never change! "Look at your friend, look at your neighbour, look at your cousin, etc, etc.,!" 
It actually creates a negative impact in our minds. Comparison makes a person think that they are worthless than others.
The thought that, 'everone should follow the same path and that is safe for their future' is one of the main reason for this. Most of the time, we hear the words of comparison from the ones who are supposed to give strength and support to our dreams.
This may lead a person to the worst mindset that they may get disheartened. Also, this results in hostility to the one he/she was conpared with and the one who said so.
Each and every one in this society is different. We all have different calibers, talents and interests. One person may be good in his/her studies. But the other may be good in arts. Similarly, one may get a job quickly. But the other may take little more time to get settled. All of us are human beings and it is a fact that none of us are perfect. We all have certain talents and disadvantages too. So, comparing someone with others doesn't really make any sense.
None of us wishes to be compared with anyone and we all hate it to the core. Let us avoid such unnecessary comparisons. Let us encourage everyone to believe in themselves and be confident about what they are and also about their interests and talents.
Wishing you all to have a good day
Thanking You :)