I can understand numbers like housing and expected them to be a bit higher (frankly? $1795 in EUR is roundabout 1300. My current budget for a new home - I'm actively looking - is 1200 EUR for my family of 3.5). Food obviously varies. I never thought about child care before I became a dad, but I understand that number quite well now.
What totally blew me away was healthcare. Wow. How is that worth another rent, a second apartment?
(I won't talk about absolutes too much - they obviously are local. In absolute terms nearly every salary on that page is _big_ in DE and IT might pay less than a BART mechanic gets. But again - local, really different situations etc.)