That is so sad... It reminds me of how luck i am to have had my parents cos i can't complain with their use of corporal punishment...
I never got disciplined like that when i was a teenager, it stopped after i was about 10yo
That is NOT disciplining, and that's what I believe others are I are trying to tell you.
Justified occasions for a parent to physically strike a child are very very rare, a little smack on the butt when the child is small may be fitting, at the age when you can't explain a "no" to them or "why", it has the function of a DETERRENT and WARNING. Punishment as a concept denotes vengeance of some kind, which is wrong in itself when executed by man. You don't want to "punish", but deterring your child from something bad by corporeal measures is acceptable when you don't have a better alternative.
Another possible occasion might be RESETING A BOUNDARY, not punishment. If a child severely disrespected a parent, one slap is sufficient there and being symbolic not about force, a beating will make no difference, because it's about child's disrespect, and using force will NOT regain that parent any respect, because it communicates not resourcefulness or authority, but rather powerlessness.
There are better ways to teach a child cause and consequence. Here's an example where behavior warranted disciplining and beatings didn't work.
My brother was breaking or warping his prescription glasses constantly as a child. Or "losing" them because he didn't like wearing them, he would throw them somewhere and pretend he lost them. My parents beat him, because they weren't cheap and he was constantly and deliberately doing it. He was too much of a scoundrel, so he couldn't use contact lenses. He was allowed to choose model himself, it was never the most expensive, but it wasn't the ugly cheap either. He has a big visual impairment and has to wear them.
I believe it would have been a lot better, since he was old enough to understand, to say,
okay, we spent money on this now repeatedly, so that emptied the funds. How are you going to make this right? Then let the child suggest on their own, per example, to pass on something nice that had been planned to be purchased for them. So he would maybe rethink the impact of their behavior, and also promise him to get that planned something for them at a later date if they behave. But make it a clear lesson that when you hit the house budget, there are consequences.
Asking for accountability, rather than punishment. One thing that frustrated me the most about my abusive mother, is that she always just beat me and was forever displeased, never allowed me to try to make things right and solve the problem when she was displeased. Because it was never about making things right, she just wanted to run a lose-lose game and perpetual problem to keep being pissed off. Per example, she would always complain I didn't help enough in the house, but whenever I offered to help or asked if she needed help, she would refuse and say I'm not good at anything.
My point being: beatings teach no lesson in accountability that you want to produce; even though my brother understood that the glasses were expensive and we were not rich to easily afford it, beating him only taught him that if he does what he wants with the glasses he will pay in beatings as in currency, and he accepted that. He obviously preferred paying that price! Even though my dad beat us to blood when he got mad.