If you're driving manually, that's fine. But someone might want 1 car length or less (because no one will get in front of me, damnit!), and the NN cannot react fast enough with that close of a gap, and will rear end the car in front if they brake hard. Then the driver will say "BUT BUT BUT, the car was driving, it's not my fault!!!".
Best advice I can give - stop caring about things like follow distance. Just relax and let the car assist with driving. If there is a good sized gap in front of you, and people can change lanes in front of you, just chill out and let it happen. I swear you will still get to your destination, even if it's a minute or two later. The guy that cuts in front of you doesn't matter, really, seriously - doesn't matter.
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