That doesn't seem like a good way to avoid a lawsuit as it suggests that sitting in that seat is somehow dangerous. It seems that this would push liability from the guest (who ignored safety warning) to the company.
Yes, it would seem that way (correcting a problem seemingly acknowledges that there was in fact a problem to begin with).
However, that's not how the law operates. The rules of evidence law, for example, were written in a manner that encourages the correction of problems (called "subsequent remedial measures") by generally prohibiting those corrections from being introduced into evidence by a plaintiff who seeks to prove negligence on the part of the defendant.
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Federal Rules of Evidence, Rule 407 provides:
When measures are taken that would have made an earlier injury or harm less likely to occur, evidence of the subsequent measures is not admissible to prove:
• negligence;
• culpable conduct;
• a defect in a product or its design; or
• a need for a warning or instruction.
But the court may admit this evidence for another purpose, such as impeachment or--if disputed--proving ownership, control, or the feasibility of precautionary measures.
Florida Statutes § 90.407 provides:
Evidence of measures taken after an injury or harm caused by an event, which measures if taken before the event would have made injury or harm less likely to occur, is not admissible to prove negligence, the existence of a product defect, or culpable conduct in connection with the event. This rule does not require the exclusion of evidence of subsequent remedial measures when offered for another purpose, such as proving ownership, control, or the feasibility of precautionary measures, if controverted, or impeachment.
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So, the legislature
wants businesses to correct problems and make things safer for the well being of the general public, without incurring additional liability or allowing for the presentation of remedial measures evidence that would "suggest" something was somehow dangerous simply because it was fixed/improved.