OpenWRT has a package called mwan3 that in tandem with dnsmasq can allow you set the IP addresses associated with a DNS entry to a particular VPN/country.
Finding a unicorn country where everything works and all traffic is routed is getting increasingly difficult. For example, if a US news site didn’t want to implement GDPR, it geolocates all users outside the US and blocks them, whilst other US services start to require ID/age verification to post content for non-US users so accessing both easily requires switching location.
I suspect we will see more services and technology to be able to deal with this complex cat and mouse game of destinations (websites/services) and origin counties. You can typically get by with a few rules/countries today, but I think that is getting harder.
CDN’s may pose a problem if the DNS resolves to a shared IP address, so IPv6 can help, but many VPN’s do not support it. For some services we may just have to accept there is no easy way to use them unless tools improve (e.g. the browser/application auto-selecting from multiple interfaces)
Banks also charge for cash services, many business accounts may just include it in the price, but someone has to physically count, collate and move around the cash, often with security. There are costs for running a computer system, and costs for using cash that businesses have always paid. Some small businesses definitely do not understand that, but cashless can be cheaper and safer depending on your country and quality of banking services.