It's not hard given the current infrastructure to carry on using cash and your debit card, I use cash all the time - but they are well aware of the distrust around CBDC's so how to get people onboard? You create distrust in the current system and crash it. We know this because of the WEF's Cyber Polygon report that tells us of the impending cyber attacks which will, quite handily, force governments and institutions to quickly abandon the existing fiat system (and internal systems like Swift) and guess what the solution will be?
CBDC's!
https://www.forbes.com/sites/bernardmarr/2023/02/06/cyber-apocalypse-2023-is-the-world-heading-for-a-catastrophic-event/?sh=78967db11b70
This is basically the "Event 201" of the financial world and it's so obvious. CBDC's are not simply just currency either - they will form part of the blockchain that governments use for Digital ID's, something which Australia already has in place for digital Driving Licences, and will eventually be just about every service the government offers including rent deposit schemes or taxation - so yes, it will be difficult to remain outside the system going forward but at least we'll have some bartering power with precious metals and some alt-crypto. It might just mean we need some alt-digital ID's too at some point.