Children and self defence
Can children really fight off an adult attacker? We can only give you our experience and we believe that even if a young child had the technique and power its very rare they would have the correct mindset to even hurt someone intentionally. Before the age of 10 years all we can do is lay a foundation and instill life skills so that they can better deal with bullies, strangers and general hazards.
Another common idea is that parents and children can both do the same class. Although it is possible to structure a class to accommodate children and adults, we don't. Young children and adults have very different needs and neither will get the full benefit. In the long run nobody reaches their potential and the standards are lowered. The nearest we have to a mixed class would be a family class for older children and adults.