Unless you’re contractually obligated there is 0 reason to give 2 weeks notice. I’ve worked a lot of jobs that have me work with younger people, and the amount of times I see them submit notice is wild. If it’s not something written out and agreed on, it’s just an assumption in place to benefit your boss.
If they fuck up, just bounce. Anxious about saying you’re leaving? Just leave. The boss will care, but that doesn’t matter to anyone but them.