Most who get kanekalon dreads dread them before and seal them with hot water or steam and then put on at the roots..not the ends. It is not real hair so I don't understand how they would dread on their own. If they were human hair then yeah they probably will. Being synthetic though I dont see how that would work. Also, most fakies are not meant to be long term, they are worn for 3-4 weeks and taken out and re attached. I am getting synthetic ones, but not for long term. Basically, for Halloween maybe a bit after then I will be removing them and waiting until my own dreads are more....well...dreads and possibly using them again. I want butt length hair, mine will take forever to get there (its chin length now). I would not recommend using them long term or you could quite possibly ruin your own. They are not going to feel like real hair...ever...they are synthetic...that's how it goes. Wool could possibly feel better since it is a natural thing, but I don't know...never used it.
You could look for a way to make dread falls as well...they will give the appearance of fully dreaded hair but can be taken out easily since they are attached to a clip, band...whatever..idk...just my 2 cents! =)