Shirtsleeves to shirtsleeves, all around the world

Most major languages have their own version of the idiom “Shirtsleeves to Shirtsleeves in three generations”.  From the very literal Chinese “wealth never survives three generations” to the more musical Italian “dalle stalle alle stelle alle stalle” (from the stalls to the stars to the stalls), this is a phenomenon that has existed for centuries.  However, I believe that in our industry it is poorly understood, continuously under-studied and rarely discussed with clients.