it depends what you mean when you say “we”. The USA tends to assume everything is legal until there is evidence of harm. The EU tends to take a more precaution

it depends what you mean when you say “we”. The USA tends to assume everything is legal until there is evidence of harm. The EU tends to take a more precautionary stance and is more likely to claim harm with a lower barrier of proof. Testing does happen, but the majority of it is done by the same corporations that have a financial interest in minimizing the negative results.