BTC is not difficult to access provided you have the money you can access BTC at any time and any day, Assuming you said  BTC is difficult to understand it could have been more appropriate than saying it's difficult to access, yes  BTC is difficult to understand on like me when it comes to the technical and mining aspect of BTC I found it difficult to understand it, I believe with this breaf explanation you now see the differences between accessing BTC and understanding BTC.