KISS THEM TILL THERE FACES ARE RED!!!!!
If you as a parent do not show love and affection to your children, they will get it from someplace else so kiss 'em on the cheeks and foreheads to let them know you care. Hug them when they feel lonely, be their friend so that they can trust you well to tell you anything, teach them so well that they respect you, chastise them so that they fear you and let them into your space so that they can understand you.
My parents didn't kiss me goodnight, but I do kiss them any chance I get. I kiss my nephews and nieces goodnight and my elder sister didn't mind 'cos she kisses me goodnight when we were kids.
I'm not forcing you to kiss them. The writer has stated the disadvantage of this which quite frankly can still happen without the kiss.
But I'm stating here the long term emotional benefits of showing them love and care at a young age.
Consider both carefully before you decide. Thank you.