The water you bath your child in quickly becomes a “bacteria soup” in which the toys can marinate, remembering that because the bath can be sited near the toilet, flushing can spread germs, bacterial and fecal matter as far as twenty feet!
Just as a postscript
Every Easter in our English village, they hold a duck race along the stream that runs through the village. There are about two to three hundred plastic yellow ducks that are re-used every year. These are numbered and you choose a number, hand over a donation and you are in with a chance of your chosen duck doing well in the race and winning you a prize.
Writing this post has made me think about those ducks - and what they must be harboring inside their tummies after all these years of sailing downstream every year! After the race, they are collected up and stored away ready to use again the next year.