Norton has been a bloated POS for years smart move, Myself use bitdefender, malwarebytes, noscript, ghostery, but for someone that doesnt have smart surfing habits a AIO is a good solution, setup a schedule and your good to go.
Anyone can get a virus safe sites or not, TBH most ppl end up infected from the easiest things , as in mail attachment, at least in my 30 years of IT that seams to be where most clients will pick them up.
Not saying ppl here dont know their poop but to recommend Defender as a goto solution isnt probably the best move for the OP. A simple search will tell you how far behind MSE is.