the tallest bars addict ever made were 23.6 out of scs and you had to modify them by shoving a tube in them to ride them in an scs. Those were the JD bars and they have been discontinued. Most bars are 24+ out of scs and thats considered short now a days, so I mean you can't really complain...
RAD bars are my favorite bars, Crow bars to be specific. I really like backsweep, it feels so much more comfortable throwing barspins and just cruising in general. They are definately one of the classic scooter handle bars and I prefer to support rider owned and American made companies
You need to be more assertive then, don't say you would rather not eat it, tell them you won't eat it. Some parents don't understand it until you show them that you are serious. If you want to make a change just be up-front and tell them, I'm sure that they will understand