>100% of our customers would not accept the costs of strictly follow this requirements. This seems to apply in pre-GDPR codebases which I'm not sure this guide

>100% of our customers would not accept the costs of strictly follow this requirements. This seems to apply in pre-GDPR codebases which I'm not sure this guide has taken into account. It probably is a lot less costly to architect an application from scratch, therefore easier to justify to a customer.