What is your opinion?  

That does seem a little strange. I've never heard of anyone have carpet in either of those rooms. I agree that it's highly impractical and how long can you really expect a rug to last in the kitchen with all the spills. We have little squares of carpet in the bathroom beside the sinks and outside the bath and shower and we have to wash them regularly because they get so beat up.

I definitely would never put a carpet in the kitchen. I have never heard of anyone who's done that, it's just so impractical and a bit stupid if I'm honest. The kitchen floor gets so dirty between one thing and another, cleaning it would be a nightmare.
I also wouldn't want one in my bathroom because it would get quite wet, and I'd rather clean a tile floor or any other similar surface.

carpets in the bathroom are alright but not the best idea, having it in the kitchen is wrong, because things always get spilt on the floor by accident it would be a waste of money becaus ethe carpet would get so dirty, that is why a hard floor is recommended.

I once rented a house that had a carpet in the bathroom and I hated it! The reason being just what you said. It's so hard to keep moisture from getting in there and the carpet molding. Just doesn't make sense to put it there.

Bathroom and kitchen are the rooms in a house with more germs, so they must be easily washable. I think carpets there is a crazy idea.

we used to live in an apartment where the bathrooms have carpets. It's really comfortable in winter we don't have to wear slippers to the bathroom, but then we have to make sure the carpet is dry everytime we finish using the bathroom or else it might get moldy. now in our house we don't use carpets unless in the bedroom since I'm allergic to it

I definitely do not like carpet in either of those places. One thing about the bathroom is as you say it will get wet and than you have mold. Not only that but when guys use the bathroom their aim is not always true and it lands on the floor. If it is carpeted think about the smell that would come about. Sorry guys but this is true. I have had it happen in my house. I had to tear the carpet out to get rid of the smell. I no longer have carpet in the bathroom. In the kitchen it also is not good. The cooking is done in the kitchen and spills do happen. Grease spilling amongst other things. It would not be easy to clean a carpet in the kitchen.

My parent's have just tiled their kitchen area but their place is 26 or 27 years old, it had carpet in the kitchen - i think that some places just had that from the older days! Apparently, it was the things to do when that house was built!
Grease shouldn't hit the carpet if you have your appliances aren't that close to the edge of the benches - well, my parents never had any problems with it. However, unless there's a spark or something, grease shouldn't be able to ignite on just carpet - at least i've never heard of that happening.
As for the bathroom - well i've never known carpet to be in there - that one does seem weird to me!

I do not feel carpeting is appropriate in the kitchen or bathroom due to spilling foods and liquids in the kitchen area that would stain and ruin the carpeting. I prefer vinyl or tile or wood flooring in the kitchen and bathroom areas. No carpeting for me in the kitchen or bathroom. He is definitely a strange landlord to have that type of flooring in those rooms.

It would seem quite stupid to carpet the areas that you mention for the same reasons that you mention.