My mom was a science teacher, we had all sorts of “pets” growing up. Loved them all! I am not scared of pretty much anything. There are 3 exceptions, Red Wasp, got stung in the eye by one as a kid, June Bugs, not sure why but I HATE THEM, finally scorpions.
As far as rodents, I think the best one to have as a “pet” for kids is a Rat. They are sweet!!! Hamsters are mean, mice are mean, Guinea Pigs make a tone of noise.
One time I saw a snake out in my mom’s flower bed, sooooooo I tried to “catch” it. It bite me! My dad tore up the rose barrel it went into to find it, it was a rat snake. Dad took it to a place up the road that had a pet shop for reptiles. I never once held it against the snake, heck I tried to grab it.