US F2 visa questions

Asslam Alaikum Everyone I’m an intl student in US and looking to apply for F2 visa for my wife and kid(1 year) and I’m looking for answers to some of my questions: 1) Firstly, do karachi embassy have availability of Sindhi translators? As my wife doesnt speak English at all, he can speak little bit of Urdu and Sindhi completely. So how should we proceed?

2) Also, since my kid is only 1 year old, is it necessary for him to go with my wife or should my wife only carry his passport with her?

3) Also my wife is bit hesitant to go into embassy alone so do they allow someone to accompany? If not, will embassy guys guide completely as during my interview there was very less people in embassy available for help.

Lastly, how much is appointment time waiting for F2 visa applicants?

JazakAllah in advance