100% agree, and this isn’t specific to IT. Whether you want to open a grocery store or an automobile garage or an investment fund, starting your career with 5 or more years working for the big boys is really important. There are a lot of problems these big orgs have “solved”, a lot of knowledge to be acquired
Learning from doesn’t mean replicating. It’s like coding, learning from something big and industrialised is very useful , even if you’re going to code smaller apps