I have tried to find a similar topic and wondering how this news was missed in the forum. 650 US banks will open Bitcoin purchases, I think it's not a small adaption if it happens really. Most probably that service will be provided by NCR banks, users will be able to purchase Bitcoin through NCR’s 800,000 ATMs as well. But surprisingly I notice Bitcoin's price drop after this news (Lol). However, I think this step will make it easier to trade Bitcoin for US citizens.
Please read the news source for more details:
$6 Billion NCR Opens Bitcoin Purchases To 650 Banks And Credit UnionsThat's not going to make a lot of difference because US customers are already using bitcoin exchanges like Binance since a long time now. Also there are privileged enough to use bitcoin ATMs which are installed across the country. Adoption by Banks is just going to make bitcoin more visible to the masses and possibly increase its credibility. But i really hope that as a superpower US will help other nations to adopt bitcoin and come out of regressive mentality.