Any career switch that involves dozens of months of training is very impressive. I've seen several career switches. One of them was an architect that took part-

Any career switch that involves dozens of months of training is very impressive. I've seen several career switches. One of them was an architect that took part-time CS studies to become a programmer. Another was a HR guy that was an electrical engineer before; he was around 40 years old when he took the same part-time CS studies as the mentioned architect. Yet another started as a paramedic, then switched to civil engineering, and he still has enough energy to learn programming (though he's forced to do this, as there's little construction work around here).