Answers

2015-11-15T12:40:09+05:30
If i would give  the actual scientific reason , it is something like this .
you must be knowing that puberty hits a girl  earlier than a boy.so, if we see the girl is more matured than boys and hence they are having an understanding power at a earlier stage than a boy. so girls are able to handle relationship at a earlier age,i.e., 18 than a boy which he actually attains an age of 21.
hope it helps
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