The drawback is when the US Bank office down the street that hosts the account closed for water damage, it stopped receiving the checks, and it took forever to bounce, so I had no idea that I was not paying my HOA... And this happened in San Francisco, California where the Bank of America and the US Bank are on the same street, a block away...

I cannot wait for FedNow or anything trying to fix this mess.

My BoA still prints checks and mail them to the US Bank across the street when I have to pay my HOA. So yes, why not FedNow... BoA and USBank ?

Lack of adoption probably because it seems to function just as a faster ACH, without any of the UX improvements systems like Pix, UPI, blik, etc have...