[mindcrime]

I agree with your general sentiment, but I'd like to add one observation.

You don't have to be "young" (however one defines that) to try out new things, implement new technology, experiment, bring new viewpoints and the like. Unless you simply define "young" as people who do those very things, which divorces the notion of "youth" from calendar age... which is probably the correct way to look at it. There's no particular reason, for example, to think that someone who's 60 is not interesting in "trying out new things", "experimenting", etc. OTOH, you could have someone who's 26 who is very stuck in their ways and not interested in doing anything new.

[js8]

I don't disagree but it seems to me that these things require, more than young age, a certain "naivete".

The more expertise you get the more nuanced view of things you get, and it really complicates the problem analysis and the decision of how should you proceed. Basically, as you learn, you become overfitted to the current solution - you see so many problems with other approaches that they seem unfeasible. But people with less experience do not have this "problem". They will happily proceed and experiment. This would by itself end in a disaster, but with the proper guidance of expert, worst ideas can be avoided and the result is often beneficial.