It wasn’t clear if the man was the child’s father.
Children are best taught with example. When they see their parents do something, may it be a good or bad thing, they tend to do the same thing and bring that practice into adulthood. The most crucial part in a child’s life is when s/he still doesn’t know the difference between good and evil. It is the parent’s duty to teach his/her children that difference.
Children often have a hard time sleeping at night and it can be a hard time for parents. But this man’s actions just to ‘put this baby to sleep’ was simply unacceptable. He captioned his photo on Facebook with “Para daw makatulog” (so he can sleep), which garnered outrage from netizens.