Everyone knows that using ROOT for day-to-day tasks is not good. There are 2 reasons for it: my might break you system easily by running dangeours command; you also shoudl not leave root account usable so oneone can brutefroce it, as it is much easier and quicker to bruteforce password once loing is known. And in this case loing is ROOT. Hence we sugest you to disable the root account. But before you do that you have to ensure that you will be abe to re-enable it again and also be able to perfom admin tasks.