That provision was introduced earlier this year, and it hasn't yet been used. I wonder how much it will end up being used. I don't know what the House of Commons is like, but the House of Representatives chamber, particularly during divisions, is not exactly a child-friendly environment. It's noisy, and lots of things are happening, so I suspect members would probably prefer not to be taking their young children in there. They do have that option, and I think that's the value of the measure the House has introduced.
On May 17th, 2016. See this statement in context.