Anonymous participant I have not seen any posts where anyone applying in the USA was asked to come in for an interview. Have a search here and maybe look on Reddit which tends to be more USA focused to check.
Yes, no problem. I was at the driving test centre with a few 2 weeks ago then saw them picking up licenses on the Monday. As above a 2 year licence which everyone gets initially..
I worked in New Product Development at major companies. I am helping friends now launch product and businesses. For pricing you price by value and not time. You are in business to make money. Put your prices up. You are not a charity :-) :-) if you doubled your price it would still be good value.