Me before and after I cut my hair and donated it to Wigs for Kids. I cut it at the end of April, and the longest piece was around 18 inches long.
I think this is something a lot of people should consider to do. You don’t have to cut your entire hair off, like I did (though I really love my new short hair) but you can donate half of it. Most organisations have a minimum length of 8 inches and most accept all kinds of hair. Your hair will help a child with hair loss. That’s something to be proud of.