Not your parent, but I have some ideas on this. I'm not sure how true they are. Maybe I'll write a longer version some day and see what people think. But the summary is this:

I suspect it has to do with how familiar you are with type systems, and the way that you use them. I find that Rust's constraints help guide me towards a solution more quickly, and I spend less time chasing down strange edge cases. Not eliminate! But reduce.