Thanks for your response.
>In almost all urban situations, native trees cannot thrive
But that's the case with MOST trees, native or not.
Obviously some do better than others and, in that regard, I've researched the average street tree to last only anywhere from 7-13 years. Given that, I'd prefer to plant a native if any were feasible.
Interesting recent article about street tree planting from ASLA:
A New Way to Plant Urban Trees
Hopefully climate change will force the issue of giving street trees greater consideration in the planning and implementation of their planting environments.