We don't live that much imo, the quality is what's missing. The average life expectancy worldwide is 73 years, but the problem is the part of which you don't have a control over, like childhood and old age, parents control the former while disease mainly control the latter.
Living longer still equates to decaying more no matter how much medical progress we had, the rest of it is just wage slavery and preparation preceding it. Youth is so short and unforgiving.