Does it EVER end?!

I have three daughters. Daughter #1 went dry during the day at 14 months, but didn't go dry at night, every night she was soaking. Finally at aged 7.5y she woke up dry and never wet again. (1.5 years later still dry.) Daughter #2 went dry during the day at 15 months, but didn't go dry at night, every night she was soaking. Not only was the drynite soaking but 2 or 3 times a week she would end up with wet sheets too. She is just about to turn 7 years old and still wets every night and is rarely still dry at 10pm when she wakes often. I am trying to go with the flow (no pun intended) after my experience with daughter #1. Daughter #3 went dry during the day at 20 months, and went dry at night at the SAME time. Can you imagine my elation?! She is definitely my favourite. (JOKE!!!) I have been buying drynites since 2006 after trying pull ups, nappies and cloth nappies, to get through the night. I hate to think what I have spent having two children in drynites from 2006-2009 and since then just one, but at the end of the day eventually they DO go dry, when you least expect it. I have never withheld fluids or lifted my children to the toilet, believing that it will happen in its own time. Hang in there!