Fargate, S3, Aurora etc. These are managed services and are incredibly reliable.
Lot of people here seem to think these cloud providers are just a bunch of managed servers. It's far more than that.
And then there's the question of whether you're going to use Terraform, Ansible, CloudFormation, etc or click through the GUI to manage things.
My point is, nothing in AWS is 100% turnkey like a lot of folks pretend it is. Most of the time, it's leadership that thinks since AWS is "Cloud" that it's as simple as put in your credit card and you're done.
For smaller projects you can absolutely get away with just the UI.
You _should_ use IaC immediately as well, because the longer you delay, the more it's going to hurt when you finally do need it.