Their is no need to repeat what people rendered concerning this question, but what i actually denotes is the primary thing which you are meant to obtain that it's because of it's volatility, and another challenges found out there that might cause bitcoin infrastructure is due to congestion and network challenges to process its data, because if their is much congestion it will really affect, and is very obvious.
network congestion will be the main problem that will make the bitcoin network not adopted, but the problem of the jammed network can be overcome with the Lightning network, this is faster and will certainly solve the network congestion problem.
Lightning Network Bitcoin is a second layer payment protocol that operates on top of the Bitcoin blockchain network, which makes bitcoin transactions faster and more efficient.
Or simply with scability issue because this is something we had big problems in the past whenever the network pool is really on congestion on where fees are really on the roof.
Aside from that we are facing some regulation issues but well it isnt really that much a serious issue because this market could move out freely without the need of those government approval.
Thing here is that we doo able too see the high demand of bitcoin despite of these problems.