Formal safety training does reduce incidents, but mostly when it is specific and repeated. A generic annual slideshow changes very little; hands on practice with the actual equipment, real drills, and short refreshers spaced through the year change behaviour much more. The evidence across industries points the same way: people retain what they physically rehearse.
Where training often fails is the gap between the classroom and daily pressure. If supervisors reward speed over procedure, workers learn quickly which one actually counts. So awareness has to be reinforced by leadership behaviour, not just posters.
Practical ways to keep awareness alive include brief toolbox talks before shifts, encouraging near miss reporting without blame, rotating staff through safety roles, and updating training whenever equipment or processes change. For foreign workers, insist on training in a language you genuinely understand; you are usually entitled to that, and misunderstood instructions are a classic cause of accidents.