Delegates are picked based on politics.
Imagine our reaction if the democrats had installed Amy Carter, Chelsea Clinton, or the Obama girls as delegates at age 18.
Seriously, who gives a sh*t.
Your concern is weird.
Adults picking an 18 year old kid — because they want to show fealty to their lord and master — is not good politics. It is cringe level stuff. It’s bad enough that Trump’s out-of-control ego drives him to treat the party like a cult of personality. We shouldn’t compound it by treating the Trump clan like a royal family.