Cloth diapers R*O*C*K! love those to bad you were'nt able to enjoy them, but at that age it's understandable.
I also don't understand how people suddenly come to the conclusion that something is 'ruined' if it gets pooped on everything is washable, and it's not like it's totally toxic or radioactive or something. If that were the case, then everyone would be tossing out cloth diapers every time they get messy, instead of simply washing them.
I doubt that your jumper was "ruined'...I think that was just a guilt ploy by your mom to make you feel bad so that you wouldn't go in your pants again...and mess everything up
Parents do this so they don't (hopefully) have to clean up any more messes and get the child to take more care of themselves, and stay clean and dry....
Guilt is a horrible tool that is wielded wrongly, can do a lot of damage...sad people are left with negative memories of childhood events because of parental guilt...