My DD that is.
I can't bring myself to cut her hair because it is straight/slightly wavy until the last inch or so, which is beautiful ringlets.
You have just described my DD's hair exactly. I have been asked numerous times if I take her to the salon to have her ringlets professionally done! lol!
I have also never cut her hair because I don't want to lose the ringlets, she is 2 years 0 months. We are not planning on cutting it anytime soon, there's no need atm. So I guess, if you don't want to cut it yet, don't.