I didn't read the other article, but I concur, that depending on the demographic it is pretty common for parents to help out with house or other starting up costs (obviously not to degree in article!). My greek grandmother painstakingly saved 40k from sweatshop work, and gave it my Dad and uncle to start their first business. They inherited additional property when she passed. My mother, while not helped by her parents, was helped by her grandmother (college) and grandfather (inheritance). My husband's parents, and the parents before them, were helped by their parents (first house, also inheritances). There was a bit of a to-do, because MIL told her kids she would split her inheritance with the kids. Then when time came, changed her mind (bought a new car instead). I know a number of friends who have been helped in some way to either afford their first house or to extensively remodel their house, some small, some quite extensive amounts.
For whatever reason, me and my sibs, as well as husband first generation in a number of generations in our families not assisted in this way, and told NOT to expect an inheritance. totally not a surprise from my side, but a little from husband's side, who are well off. They also did not help with costs or give money for only daughter's wedding, which I thought was strange.