All kids manage it in their own time. My MCHN was horrified when my 4yo was still bedwetting and suggested all kinds of 'training' programs. Truth is, if you ask lots of other mums there are lots of kids that just don't 'get it' until a bit later. My DD is nearly 6 and still averaging only 3 out of 7 dry nights.
My SIL did it until she was 8.
In all honesty research suggests taking them at night does little to help, but I do it too. I can't carry my nearly 30kg DD and haven't been able to for a while, so I have to physically wake her. The nights I do it (usually after 11pm) are far more successful than when DH is here and he just picks her up and carries her without waking her properly.
A friend of mine found an osteopath helpful for her 6yo.