If anything, it's this idea of "do your own thing" — which you interpret as 'letting someone develop their own preferences'. We've seen what happens when people decide their own preferences over such a simple thing as wearing a mask during a public health crisis... and it isn't pretty. Taken to extremes, it becomes libertarianism at best, and anarchy at worst.
Let's take another example of someone developing their own preferences. I used to live in a trailer park in a community on the west side of Wisconsin, along the Mississippi River. If I wanted to get from Wisconsin to Minnesota on my bicycle, there were exactly three bridges (four if you count the Canadian Pacific railroad swing bridge, which I don't) across the river within a thirty mile radius, and one of those was on an Interstate highway — which have these nasty signs at all the on-ramps:
Now I personally think that after all my years of cycling I am proficient enough to be able to stay on the (eight-foot wide) paved shoulder, at least for the three or four miles it would take to cross from one state to the other. So, in keeping with that "everybody develops their own preferences" thing, my preference is to ignore the sign, ride up the ramp, and head west (or east, as the case may be) rather than add another six miles one-way to get to the narrow, two-lane bridge and highway with no shoulder at all where I AM legally allowed to cross, but must ride on a sidewalk to do so — and according to you, that's OK.
And maybe it's because I believe that a certain amount of decorum is required in society. Otherwise what's to stop someone from deciding that their preference includes setting up a bed in the yard and selling mattress rides, like kids used to set up Kool-aid stands?
-"BB"-