Another relevant childhood memory: my parents added an additional lap belt to the back bench seat of our minivan in around 2001, making a 7 seater into an 8 seater legally. We fit four accross a few times (mostly kids/tweens 6-12 YO, no booster seats). Also not the most comfortable but also an adventure. I would be curious what the cost is to add a seatbelt to a 5 seater car nowadays, as it would likely need to be a shoulder belt. With kids in boosters to a much older age it would be more complicated to fit 4 across and I wouldn’t do it in a Fit, but there may be other cars where this would be an option.
Another relevant childhood memory: my parents added an additional lap belt to the back bench seat of our minivan in around 2001, making a 7 seater into an 8 seater legally. We fit four accross a few times (mostly kids/tweens 6-12 YO, no booster seats). Also not the most comfortable but also an adventure. I would be curious what the cost is to add a seatbelt to a 5 seater car nowadays, as it would likely need to be a shoulder belt. With kids in boosters to a much older age it would be more complicated to fit 4 across and I wouldn’t do it in a Fit, but there may be other cars where this would be an option.
I don’t think these are allowed in the US, but they do make adapters: https://www.multimac.com/p/multimac_1320_4_seater
Those are only useful while the kids are in boosters or carseats though. They don’t really add an extra seat in a general sense.