HELLO YOUNG MAN , I HAVE BEEN TO THE UK OVER 8 TIMES , AND I KNOW UK BACK AND FRONT , ALL THIS WHILE I'VE BEEN APPLYING SEVERAL VISAS I DID NOT FOR ONE DAY USE A RIGHT DATE OF BIRTH OF MY PARENT, AFTER ALL I DONT EVEN KNOW WHAT IT IS , I USED A COMPLETE WRONG ONE AND SOMETHING DIFFERENT , NOTHING WILL HAPPEN IF YOU DO THE SAME THING , ALL THAT MATTERS IS CROSSING THE UK BORDER AND THAT'S ALL , AND MIND YOU IF YOU CHANGE THE DATES NOW THEY MIGHT BAN YOU FOR 15 SOLID YEARS YOUNG MAN

Belly458: well yes but certificates like birth certificates and family registration certificates can easily be lost?
yes you can request national database authority to attain duplicate certificate but most people dont do that, unless there is a need.
and no I am not banned.
I just dont feel ok, entering into the UK with wrong DOBs of my parents. it will create problems in future, for sure..