Yes a lot of people commit this mistake and screw it big time, even the regular users of bitcoin like me can commit this mistake as I have already done this in the past when I accidently sent about 0.1 bch to my btc address, I am very grateful that it wasn't the other way around as then I would have lost very huge amount in that case. So it is very easy for newbie to commit a mistake because I can also do these stupid mistake even i am an old user of bitcoin.