At a lot of the races I show up to, I am the only vegan in the parking lot, and definitely the only one eating what I am eating at three in the morning during a 24-hour event. For years I felt like I had to explain myself. I do not anymore.
The quiet pressure to match
There is a steady, low pressure in any group to do things the way the group does them. Eat what they eat, train how they train, want what they want. Most of it is not unkind. It is just the current, and currents are easy to drift in.
Doing it your way is not stubbornness. It is a skill, and like any skill it gets stronger with practice.
I am not telling you to be vegan, or to race through the night, or to do anything in particular. I am telling you that the ability to hold your own line while surrounded by people holding theirs is one of the most useful things you can build.
Where it shows up
It shows up in your career, when everyone is chasing the same shiny strategy and you keep doing the patient thing that works. It shows up in your life, when the easiest move is to want what the people around you want. Find your lane. Pack your own food. Ride your own race.