I never hesitate to suggest to an adult that their kiddos need a pfd on. Even if they get mad, I know I've tried to prevent a drowning.
I do not tell folks what to do with their catch as the few times I've tried too, I'm perceived as a meddler.
I just call 1-800-792-4263 and report them to Operation Game Thief.
If the Warden is on the Lake, just sit back and enjoy.