I don't know anyone who ever went on an official visit with their child and was not accomodated with lodging and meals.
I am assuming a school would not cover parents expenses because they just don't have it in their budget? For me this might be a warning sign coach is on a strict budget. JMO
However I think the poster may be a player and is asking for , not parents.
Answer is they pay for your transportation, lodging and meals. At one school, teh players had their own hotel rooms! Not on the same floor as ours .
Prepster has directed you to the right place.