I found 26m DD1 throttling her baby sister 8mo around the neck yesterday, she got put in the naughty corner and got told that you do not hurt DD2 she's only a baby, if I had smacked her how could I give her that message (it's not OK for you to hit little DD2 but it's OK for mummy to hit you) that to be seems mad.
DP and I have decided not to smack the DDs, we both feel ill at the thought of inflicting pain on them, sorry it's the way we feel. We are trying to teach them that all physical violence is not on.
I was smacked as a child, I remember on several occasions lying in bed crying the tops of my legs stinging and my mums handprints in red on them. I also remember my friend telling me her mum had thrown her down the stairs and used her feet on her (her words) as she had stolen 50p from her. She had the bruises as well.
I also know a mum at toddlers who smacks her DDs regularly and their behaviour is in general much worse then my DDs (but that could be an individual case). I don't think smakcing improves a childs behaviour TBH.
If the survey was taken over society as a whole I'm not surprised at the % as if you ask nearly anyone of our parents/GPs ages they are all in favour of smacking.