You are probably not entitled to this benefit. You have to meet certain requirements in order to be entitled to a vocational training grant. One of the following cases should apply to you for your application to be successful:

You are taking part in a pre-vocational training program – perhaps also in order to prepare for a lower secondary school certificate or an equivalent school certificate.
You are doing in-company or external vocational training in a recognized training occupation. Your training company is too far away from your parents to stay at home.
You are doing in-company or external vocational training in a recognized training occupation. In addition, you are over 18 years old or married or live with your partner.
You are doing in-company or external vocational training in a recognized training occupation. You have at least one child and do not live in your parents' home.

If one of the following applies to you, you are not entitled to financial support in the form of BAB:

They are doing school-based training (e.g. to become a physiotherapist).
You are already receiving services from another authority that are comparable to BAB.