No, it is more than easy to use bitcoin.
Some people would find complicated to see their first bitcoin on bitcoin-qt (now bitcoin core). Other than this using bitcoin and getting into our storeage of investment, honestly I do not find any difficulties. All the above it made ease of using obline virtual moeny. Really bitcoin is a digital smarter money.
Initial synchronization is a concern for many of new bitcoin users. The solution to that is light weighted wallets.
People do not need to understand how bitcoin works but they need to understand the need of bitcoin and it's purpose for modern days rights to human beings. Bitcoin complications are for advanced users not for the beginners.