Often, rather than sorting through all the information required to make a choice. It is much simpler (in that moment) not to choose (which technically IS a choice), or go with a safe familiar option.
This episode is also available as a blog post: https://neurodivergentrebel.com/2023/05/08/autism-choices-why-making-decisions-is-hard-for-me-as-an-autistic-person/