I think anonymous transactions can only be in a small field. it cannot grow big for some developed countries.
Because the government and some regulatory agencies will not be able to control transactions and that makes them make adjustments to the crypto market.
Anyway, crypto still needs more adjustments to become more complete.
This is the most important problem, regulations and governmental adjustments.
I think it may be the only factor that can harm future of crypto that is very bright right now.
None can predict with certitude what tomorrow will bring but we can agree that this system of ours, will eventually try to hinder and takeover the control over crypto world, either through artificial division or tricky law making. Right now future is bright but we must stay vigilant.