I agree with Cabanafrau... And, yes, I totally get the meaning of the 'in the driver's seat' analogy.
Speaking of 'control'...
We always did drive, ourselves, when we did try traveling with my inlaws.
(I also used the phrase 'driver's seat' as an analogy for 'in control'.)
The one last time we ever tried traveling with them, they proceeded to tell us where we SHOULD have parked when we arrived at the condo-resort. (the parking lot for the building behind theirs, on a dark rainy night, cutting across the parking lots and grass, mud, puddles, etc.. in the dark, after storms had taken out ALL exterior lighting... with our toddler and all luggage in tow... 'because then we can see our car from the unit'
No, the OP does not have to be as bad as my inlaws for me to see that she wants everyone to go along with her thoughts, expectations, and desires.. Because "WE think it would be great to make that trip..." Because "WE always do stockings"... "Because WE family..." etc.
When young adults leave the control of their parents and go to to college, and into the various other views and opinions and influences in the world.. they are 'indoctrinated'.
I do feel like I have enough input and info here to have come to that general opinion.
And, Cabanafrau.... The fact that there seems to be some signs of 'control' with the son... I am thinking that this could be either of two things... Yes, sometimes the apple does not fall far from the tree. And, in my experience with others who are controlling, often one has to learn to be proactive and take back control, as a preemptive protective measure.