When i compare centralized with decentralized one question comes in my mind that is really decentralized system is viable to do transaction without knowing any central authority. Don't you think it may lead to fraud as well because there is no third party involvement. For example when we use banks to do transaction, Banks should have to consider norms and regulation made by central bank but in decentralized system whom we follow and if something fraud happen and whom we target ?
in fact, it all depends on how it is used, so there are indeed several fields which in this case are not suitable to be decentralized because of the opposite nature. and also especially within the scope of security, decentralization still has many weak points that must be fixed