If your friend come to you with a plan or dream, instead of being the one who put doubt in their mind. Be the one to tell them go after it.
That’s the least u can do.
Related to that last thread:
Interviews (the kind where you have a conversation for an hour) are so ineffective, except at measuring 'talking ability' and credentials.
Auditions, tests, etc are _so much_ better. Best of all are internal promotions where you have years of data.