You may be right, with respect to kids today, I can not say as we have no kids....
I am a Canadian Health Care employee. When I entered into the work force in 1999 it was recommended I have a Hep B shot. In 2006 we took our first cruise and it was recommended that I get the Hep A shot. There is little to no incidence of Hep A in Canada. When my gf travelled with me on the cruise it was recommended that she get the "Twinrix" vaccine which is Hep A & B. Today (in Canada) the Twinrix vaccine is the same cost as Hep A or B by themselves, so overall if you have never had either, it's just as well to be vaccinated against both today.
Exotic Western Caribbean - Dream (B2B) - November, 2013 (Our Honeymoon)
Eastern Caribbean - Dream (B2B) - November, 2013 (Our Wedding)
Mexician Riviera - Spirit - November, 2011
Western Caribbean - Freedom - January, 2011
Southern Caribbean - Miracle - November, 2010
Western Caribbean - Liberty - November, 2008
Eastern Caribbean - Valor - October, 2006