actually, clever person,
that is why there is quran and hadeeth to look at; if you look at the in-depth meaning that scholars have specified it says this:
light chatisement,
you can't hit the face or head,
you can't kick them( in doing so, it is that regard them to be inferior; but in the eyes of god we're equal),
when resorting to 'disciplining' them, the arm cannot be raised to the extent that the whiteness of the armpit is seen( in islam, it is suggested that the armpits should remain hairless)-figuratively-like if you weren't wearing a top.
lastly. you can't hit with such force that it scars/bruises them.
P.S.
that is why there are theolgions and scholars, to explain that the words aren't literal every time.
btw don't argue back with but or if and try making logical arguments about literal meanings 'cause you're no scholar to say something like that in the first place and telling you that these are the rulings under islamic jurisprudence.
bye