Finnair Plus - Did the definition of "child" change?

I've been fooling around with AY booking machine, as we will be traveling to Munich and New York as a family next year. My son will be soon 12, so I had noticed that Finnair considered those up to 15 children when it came to ticket prices, which was more generous than many competitors' policy.

However, today I checked whether there had been any changes in the prices, and noticed that now 12 and up is adult. When did this change?

Might make sense to ask Finnair about it..?

Might make sense to ask Finnair about it..?

That would be far too sensible! :p Actually I did, but since it was 5 pm, didn't get any reply to e-mail yet.

But, funnily enough, now a child is again under 15...

I think it depends on the destination ...
Also, the trend has been to lower the age limit, Finnair as well as SAS.