Norton Security trial and switching remaining days from NIS V21?

Technically. Trial or not. It gives people a chance to try the new version and most likely. They will renew. So how about it Symantec. I would like to download the new version using the trial. Then put the remaining days left from my NIS V21. I have 55 days remaining. Once all the days are up. I would have absolutely no problem renewing my subscription when its up. Instead of making people buy it first flat out and then stacking the remaining days onto the new subscription. This is a possible new approach that you could take that might please many customers.