I like the arguments. I had to fight my family as well when making any ventures. Will they be fruitful? who knows. However my family was always saying "why risk failure, when you can have a nice 9-5 job that always pays well and is fairly stable?" or "why risk working your ass off for a year and "show nothing for it"" where to me working my ass off for a year is a year of education i'd have never received otherwise.
And my family is fairly progressive.
We are immigrants from Ukraine (circa '92)