The LATCH system is seems to be bolted on, but not always used. It’s still going to bounce in a crash as the seat cushion has a lot of give under these forces. Further, in terms of real world companions you need to understand people don’t nessisarily use safety equipment correctly especially if it’s more time consuming. Comparing LATCh attachment vs seat belts is a whole other discussion.
The LATCH system is seems to be bolted on, but not always used. It’s still going to bounce in a crash as the seat cushion has a lot of give under these forces. Further, in terms of real world companions you need to understand people don’t nessisarily use safety equipment correctly especially if it’s more time consuming. Comparing LATCh attachment vs seat belts is a whole other discussion.