Yes, indeed. It's a big issue when you use a number, say 19 years old, as dependence for children, and then if it comes to 22.... In different cultures we live with parents until we get married. Maybe we're 40 years old or 35 years old, and we still live with our parents. We are dependent according to our culture and definition on our family structure. Putting a number for aging people is very problematic. We should really reconsider that if children are living with parents, then we should not have an age for them.
On October 25th, 2016. See this statement in context.