I'll speak in the broader sense of allowing families the freedom to choose what they want to do with the money they have in their pockets. On whether that's best achieved by rolling those into one, I would leave those questions for civil servants to address; they are much better versed in these things. The principle, though, remains: we think those are good tools to use. Also, they provide parents with greater leverage because they'll have more money.
On October 21st, 2014. See this statement in context.