lol
My first advice would be
DO NOT TEACH YOUR ELDEST YOURSELF it will only end up in tears
Parabolic aren’t very different, it’s jsut much easier to start the curve, and you can usually get sharper (smaller circle radius) curves.
On the other hand you really need to use both legs during the curve and ont only the bottom one.
They usually tend to have a little bit of float if you do very long and fast schuss, but nothing dramatic (specially since most of brands now have an anti bobbing system)
hope it helps