Single biggest cause?
To much interaction of boys and girls which by the way is considered to be the “roshan khiyali”. When elder object to any such thing they normally get a reply
“oh mama its not your age… unless I meet with him/her and spend some time with him/her, how can i find out if he/she is compatible”
In the end they figure out that they are not only compatible but version 2.0 is already on its way..
PS: now stone me to death for this 