There's so much UX for a prospective new AWS dev that could be improved. Say a 1 click "do you want billing alerts with that?" Template, or a "do you want to lock down expensive nonfree stuff?" option to set some soft limits to zero out of the gate (nescessitating a self serve support case to unblock).
It's frustrating. It's been this way for over a decade yet you'll still see new customers cutting themselves on the nuances of free tier. I get that AWS is 'enterprise real deal do what I say', but I don't think that means you should completely exclude the customer story of any new developers just getting their feet wet. It's an area of customer obsession the business has regrettably lacked, and if you go by the continuous stories of people messing it up on HN/twitter/reddit/etc, it only becomes more glaring how little the new guys are being taken care of.
But it's kinda the same as a trial where you have to put in a credit card number.
If they auto-charge once the trial is over, I don't like them. That is a dark pattern.
Equally, with this, AWS could very well ask you, the user, what you'd like to do if you surpass the free tier. Charge? Or turn it all off.
On top of that they could instate default thresholds so that you, the person who just started their free trial, does not get bill shock when you forget to turn of that $200/h machine.
It does if you ask it to. You can get billing alerts if current costs are projected to go over a threshold.