Codecademy Career Courses

Are Codecademy career courses such as frontend engineer and full-stack engineer intended for older users or/and younger users like high schoolers?

Being a MOOC, it is geared to lifelong learning so not age focused. It follows that older users are perhaps retraining for a career change, and younger learners are gearing up to start a career. More technologically savvy learners will likely understand and absorb the information quicker, regardless their age.