Why the steps for lock screen on Galaxy S7 Edge are increased?

For enhanced device security, to set screen lock type to Fingerprint, PIN, Pattern or Password must be set first. And, after PIN, Pattern or Password lock setting, step for fingerprint setting is added. This is Google’s new concept to Reinforce the device security and it’s common concept for devices based on Android OS 6.0. Accordingly, you can unlock your device with PIN, Pattern or Password which you set even if you set your lock screen as Fingerprint.