There is a speculative (investment) presence in the current bitcoin discussion scene. Only known and used by a few people.
If bitcoin really wants to become a universal currency payment system, how can we optimize the design for ease of use and make it easy for most people to get started easily and with low risk?
We can improve the usability of bitcoin and make it one of the universal currency payment system by inviting and convincing other businesses and stores to accept bitcoin for making transaction because it would inspire other businesses and stores too if they heard that a lot of people had been using bitcoin for their daily lives.
It seems to me that for a simple person it will not be a problem to use cryptocurrency, but the real problem will consist in ensuring that a person can not only follow elementary rules to keep his cryptocurrency funds safe and sound, since today it is harder to keep your cryptocurrency assets than fiat funds in bank accounts or in your safe at home. Any information leakage, especially if an attacker is hunting for your data, can lead to bad consequences.