While I agree with carbon footprint regarding conventional concrete but I am not quite as agreeing with regards to 'life span' because it really depends on the concrete mix and it's a big variable. I am not against concrete or entirely for it as some fetish. The material has its pros and cons. I prefer natural stone masonry like basalt/granite. As those materials can last a very long time. However, I also like to use renewable materials like wood. However, for some structural stuff, I may still use concrete due to code requirements/seismic and such. I do consider other options but it all depends on the entire budgeting and availability.

As opposed to, what, all that hard wood?  Or rigid steel members?

Until oatmeal, tapioca, or terry cloth is finally approved for widespread structural use, I think we're stuck with the big three.