Clothing is hard because it needs to have stretch. Iron is easy to automate because it doesn't stretch (well it does but not by enough to worry about). Thus we have been automating steel for a long time, and clothing still has a lot of manual sewing done on it. To the extent we have automated sewing it is often has a significant quality reduction.

Hopefully somebody can solve the problem. There is a lot of work on it, and progress is being made. Don't ask me how close they are, I don't work in that space.