Today isn't my birthday, just something I've thought about in the past.
Personally, me and my friends don't really exchange gifts on eachother's birthdays, but I always make the effort to at least give them a call to wish them a happy one/leave a message doing so.
They're good people and I love em', but overall they very rarely return the favor, and it kinda hurts my feelings ngl.
Time blindness.. that's a great way to describe it ive never heard that. Personally, I set reminders on my phone for a few of my friends who I know care about that stuff. I still have to ask my mom where I was born and other similar nonesense every time I fill out government forms. Gonna be tough when she's gone.