Big surprise, the old adage "it's all about the people" rings true. I'd guess this is also an area where the Dunning–Kruger effect and misaligned developer inc

Big surprise, the old adage "it's all about the people" rings true. I'd guess this is also an area where the Dunning–Kruger effect and misaligned developer incentives are involved. Inexperienced teams are more likely to take on reinventing the wheel. When you're starry eyed it can sound fun, plus its a great opportunity to do some resume building. But as folks become more experienced, they can end up salty and disheartened. If you've been around the block a few times writing your own database might no longer sound so exciting. Plus life has become comfortable, you've mastered the tools and aren't really all that interested in taking risks so it's easier to just recommend IBM or Oracle. Both scenarios aren't really all that great. Maybe Jane Street and their ilk are just better at rewarding risk while simultaneously providing strong mentorship opportunities (I see the intern projects).