One of the most interesting things about life is that no one's experience is the same. Each of us navigates the world differently with a unique set of experiences and memories.
For marginalised groups, who have, at one time or another, fallen outside of society's norms, life can present difficulties which aren't experienced by the masses.
A tweet by @, which uncovers the experience of the LGBT+ community, has gone viral for this very reason.
Mark received thousands of replies when he asked Twitter users to share the parts of everyday life which make them uncomfortable.
Some of the answers were heartbreaking...
For LGBT+ people, even something as straight forward as a holiday can require extra consideration.
Or as simple as going to a work event or starting a new job.
Or paying the bill at a restaurant.
Or, perhaps most sadly, holding hands in public.
Times like Christmas, which are supposed to be full of love, can be painful reminders of not quite fitting in.
It just goes to show that, while things have come so far, there's still a long way to go until everyone feels comfortable to be who they are in 2019.