I believe that it is slightly outdated from the past. I mean the world evolves so golf attire needs to evolve with it. But there still needs to be some level of respect giving to how you dress. Not everyone can afford to buy golf clothes as we know the prices have skyrocketed. But at the bare minimum you should be presentable to the point you look put together enough to go anywhere. Its a very interesting subject as trying to make golf more inclusive means gone the days of only certain styles. There are so many opinions to this I don't think there will ever be a "right" answer.