I think of bath mats as being floor towels, they should b washed regularly. They r superb bcos it means u don’t make the floor all wet when step out of bath / shower, bcos when u do that n don’t have a mop to hand, the next person is gonna get wet feet or stomp it everywhere with the ubiquitous bathroom slippers!
NEVER, NEVER use a pedestal mat at the base of the toilet, it is a breeding ground for germs and is disgusting. Pedestal mats r supposed to be used at the base of the basin.