Will there be any problem with my dad financing my planned U.S. trip when I intend to stay at least 3 months?
Upvote:3
They want clarity where the money comes from. A parent funding a 23-year-old is normal, so that is no problem if your father can afford it.
They want confidence that you will leave again. That will be difficult for a 23-year-old who can spend several months on vacation -- that is, someone who has no job or studies lined up soon.