Some things you know in advance are obviously going to be computationally intensive, such as games; for those, you need all the performance you can get, so comm

Some things you know in advance are obviously going to be computationally intensive, such as games; for those, you need all the performance you can get, so committing to data oriented design from the beginning has a lot of benefits. For everything else, you just have to decide if you think the tradeoff would be worth it. There is no easy answer here.