pretty silly. First off, what percentage of the workforce is actually in highly paid professions like Engineering, Medicine and Law? Perhaps not that many. Now filter again, what percentage of those in highly paid professions are highly experienced AND not already homeowners? I suspect a very small percentage. Now filter again, how many of these are couples where BOTH are in high paid professions?
You get the idea..what the OP is assuming as common is actually a VERY VERY miniscule part of the population.
Infact, I am in IT, most of my high earning friends are already homeowners with no plans to buy anything. MOST are married to wives whose professions are either stay home moms or teachers etc. Some whose wives are in IT are usually BSAs or Quality Control etc. which pays significantly less. This is the reality.