White Fragility is a Kafkatrap. Further, Robin DiAngelo is actively encouraging whites to view themselves as a unified collective without a moment's thought as to how reviving this scientifically asinine and historically disastrous idea could backfire.
It's common in large European stores to relegate cheeses to their own sections. While for most anglos, cheddar is synonymous with cheese, this is not the case across the channel.
It's to mitigate that risk factor. You wear your seatbelt every time you drive as "there is a non-zero chance you will crash" even though the vast majority of the time wearing the seat belt was unnecessary.