How do you think about to teach children self-defence?

i agree with you. it's better that children are taught self defense while they are young. in most training schools, children are first being oriented on the purpose of why they are being taught of such and what they have to use that defense for. that's a good idea. go for it.

Before enrolling a child into a self-defence class, I think it's important to talk to him/her about why it's good, what it is good for, when to apply self-defence etc. I see no problem with self-defence for children, as I think it actually helps build up a child's self-esteem, confidence, coordination and a respect and empathy for others. What I mean by respect & empathy is; there will be instances in a self-defence class where kids will team up or spar with another child, & it will teach a child who's capable of self-defence to think before inflicting pain on others as he/she would not want pain inflicted on themselves. However, it all depends on how old your child is, what her/his personality is like, and whether he/she can cope with it or even want to do it.