Almost certainly, yes. Many people live on far less than that and retirees have their income augmented by a government pension (i.e. Social Security) which is quite generous by global standards. This is all eminently achievable by the average American living an average life with kids and whatnot, many do. Making better than average life choices provides a lot of insurance against bad luck over the long run.

An under-appreciated point that extends far beyond the financial is that Americans have an anomalously high amount of optionality in life.