Some of the big benefits of major cloud providers (AWS, Azure, GCP): - the sheer number of services available - managed services - high availability, wit

Some of the big benefits of major cloud providers (AWS, Azure, GCP): - the sheer number of services available - managed services - high availability, within and/or across regions - APIs/SDKs for many of their services, for many languages - monitoring and alerting built-in - RBAC - means of grouping and organising resources and subscriptions I work as an architect in the enterprise space, where those last 2 are pretty important because a lot of different teams are building/using a lot of different systems, and often multiple organisations are involved. High availability of some services is vital, because downtime can affect the bottom line, or mean an entire workforce has to down their tools. Considering only the first 3 items, most of the non-huge systems I design - and, I would imagine, most non-enterprise/FAANG-scale systems - have only modest availability requirements, very rarely needing cross-region availability. And most of those systems only really need web apps and APIs, proxies/gateways, a database, a message queue, blob storage, and often some form of background processing (VMs, containers, serverless). OK, that's still a fairly long list, but it's a tiny fraction of what the big cloud providers have on offer, and the database is probably the only tricky thing on the list.