We have a place in Calis and a farm next to us there. I see the animals all the time.
I have never seen anything barbaric. I have never even thought about seen anything of this sort. Calis is a holiday resort with lots of tourists the locals are not going to kill animals in public view.
It would be a shame to miss such a wonderful country for the reasons you mention. However, it's your loss and more importantly your children's loss. I am glad my Granddaughter will be over in Calis for two weeks this year and I have no fears she will see anything untoward. My daughter, who as been to Calis many time is a vegetarian and an animal lover and I know she would not take my Granddaughter anywhere where she would experience animal slaughter.