[robochick1319]

If someone trips with a drill or other equipment in their hand, everyone (long hair, short hair, no hair) is going to have a safety issue.

I think asking people (not just girls) to tie hair back is a good idea. But there should also be efforts made to eliminate the other hazards. If someone tripping with a drill gets the drill caught in another person's hair, odds are they could get the drill caught in the person's shirt/body. That affects everyone.

Tie your hair back and if it still obstructs your work area, then put it in a bun. I have always had long hair and usually pulling it back is adequate. If it's not, then it goes in a bun. But telling girls to wear hair nets or tuck their ponytails in their shirts (which doesn't work super well) because there might be someone tripping behind them just seems like overkill. (Not to mention alienating to girls.)

Eliminate trip hazards by making your work area less crowded. Don't rush. Use the safety devices with your tools. That should be more than sufficient.