system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 - With all the concern about potential brain injury and sport team liability, it seems like soccer/football 'headers' would concern people more. Why isn't this practice frowned upon at a professional level?
gpt
People are well aware of the danger. Many youth leagues ban headers for that exact reason.

But, sports in general tend to be conservative when it comes to safety changes, which likely explains the lack of action at the professional level.