Actually no one forces you on how you would pay because the landlord or the owner would really be just simply be receiving on what you do currently have as long you are paying your rent then this do matter the most. The only good thing on this one is that you do really have the option on what you would really be using and as a crypto enthusiast then if it turns out that you dont have any choice on paying up your rent
and you do have that Bitcoin to be spared or make use then its a good option or a life saving situation but of course we do understand on why people would really be that reluctant on using up their coins
on which we know that this is something just that a waste of using it up on something that we can really do on using up fiat.

It is really just that there are people who are really that skeptical on wasting up their precious coins on which does have the potential on rising up its value
into the future on which it would really be just that understandable on that part.

Paying a fixed monthly rent in terms of bitcoin seems to be good. It seems to be a wise decision, so the sender will make a calculation based on the particular day's market value and send it in the form of bitcoin. This won't affect the receiver as well as the tenant. A fixed amount in bitcoin doesn't seem to be fair because, in the bearish trend, tenants might pay less, but the rent paid in the bullish trend will be quite high. Everything depends on mutual agreement between the two, and these kinds of activities help in the real-time acceptance and circulation of bitcoin in day-to-day life.

If both parties agree to the payment option, why not use it? Even if you have cash on hand, if the landlord prefers to be paid in Bitcoin, there's nothing wrong with that. Perhaps the rent money he receives is not used to support his daily needs, so he has decided to accept Bitcoin and add it directly to his Bitcoin holdings. This way, he wouldn't have to worry about fees and the steps involved in buying Bitcoin through an exchange.

If we think from the tenant's perspective then spending precious bitcoin on rent won't sound like a good idea.
On the other hand, if I was the landlord then I would be more than happy to get the rent paid in bitcoin.
I would be getting bitcoin on regular intervals thus DCAing bitcoin automatically every month.

My answer to that question is yes and no. For No, It isn't appropriate if the landlord doesn't know about crypto or even accept Bitcoin as payment for the house rent. For Yes, it is appropriate if the landlord is also a crypto enthusiast and the landlord also told you that he/she also accept Bitcoin as payment for the house rent but if the landlord didn't mention anything like that then you should ask the landlord if he/she would accept Bitcoin as payment for the house rent.

I don't see anything wrong with using Bitcoin to pay up your house rent, buying a house or what have you, I mean the future of Bitcoin is general adoption, using bitcoin to pay for anything, starting from a cup of coffee in a cafe to buying bus and plane tickets. If you see using Bitcoin to pay for rent then that means you can't afford to see Bitcoin being generally adopted as day to day payment method which is actually the goal and vision.