Instagram user @dashik_nova has incredibly long hair worthy of Rapunzel. According to her profile, she has been growing it out since 2003, so she can give you an idea of what happens when you don't get your hair cut for 13 years. Interestingly, that's almost the same amount of time Rapunzel was locked away in a tower before the prince found her.
Here are some pics of her hair both braided and down (way, way down):
Here are some videos of it flowing in action:
Never forget that hair that long has to be washed:
If she fled after escaping a tower, it would probably look like this:
But it looks like she's happy right where she is. Living a very charmed life, hopefully with a growing roster of sponsorships from hair care companies.