Google Forces to upgrade to Google Accounts

Google asked its Adsense Publishers to migrate to a Google Account since last may and now they will force all the publishers to upgrade or migrate their Adsense Login into a Google Account.
According to them, if you don’t upgrade, you might have issues loging in to your adsense account or might even loose access to your account. Now, thats call forcing.
On the other hand, it will give them (Google) more control to track user accounts and their behaviors.
And, it will also help users to manage their account easily and will let them access all the Google products like Adsense, Gmail, Adwords, Webmaster Tools etc though only one account and also take advantage of new features like Site Authentication and the recently improved AdSense for Search.
Its also OK if you want to use separate Google Accounts for separate services like one account for Adsense and Adwords and another account for Gmail and Webmasters Tool. If you are also worried that you have your Bank Account informations in Adsense account and Credit Card informations in Adwords account, you can always have those account separated and Google is assuring you the top most security for your informations. According to them, the processes are fully automated and they don’t even have access to those informations from their end.
To conclude, its better to migrate as Google might block your access if you don’t migrate. Why take chances?