For me, the big thing is that older developers need to use their experience in helpful manners. In my experience, it's used it to simply block or scoff at the a

For me, the big thing is that older developers need to use their experience in helpful manners. In my experience, it's used it to simply block or scoff at the actions of younger devs or managers while not always working to solve the issue. In order to be useful, you have to also work and suggest alternatives and solutions, otherwise you're just a curmudgeon. That's at least what I've found working at a site that is mostly older engineers.