The answer is that it often is not, at least for most people, most of the time.
wrong! bitcoin IS a better payment system. the correct statement would be bitcoin is
not perfect. and what is perfect in the world that we live in? nothing!
of course there are always pros and cons to any system and bitcoin is no exception either. but the advantages are outweighing any kind of disadvantage or imperfection that bitcoin may have and that is acceptable.
I believe once bitcoin reaches full scale and the second layer scaling infrastructure has been completed it will enable a much better, faster, cheaper, more open and transparent payments system. The current financial system is so manual and inefficient.
the second layer scaling solution is also no perfect. although it is a good and very interesting solution but there are still downsides to that too. but as I said as long as advantages outweigh all these downsides we have a good system, and that's how bitcoin is.