Are you seriously asking that question? What are the barriers to a junior dev writing the Linux kernel from scratch by themselves? What are the barriers from climbing from the bottom to the top of a ladder where the rungs are 20 feet apart?
Sure, start at the top, then it's great. Very few start at the top.
If I'm missing one, or a class of product with different barriers, I genuinely would like you to point that out.
Seriously, think about it a bit, without being sanguine.
The junior dev is inexperienced, in everything, and now has no path to build up that experience. No one's going to want their 18/22 year old amateur-hour "chatgpt make me a cloud app" (which is in competition against millions of others). So unless they're extremely lucky, they goto fail.
Maybe after 10 years of those failures they could build up enough experience through trial-and-error to maybe see a little success with a "chatgpt make me a cloud app," but how are they going to feed themselves the meantime? Maybe that will work if they have rich parents, but otherwise they're probably going to have to use up their energy to scrape by. So another goto fail.
This hypothetical scenario is literally like "pull up the ladder behind you", as all this experience and connections is something that a senior person has gotten while being handsomely paid for their time, but a future junior person may have to get on their own time and dime.
Ideas are a dime a dozen, execution is everything, and there's no reason to assume that random unemployed inexperienced people will be superior at execution.
