This father is really dumb. He needs to stay in a place that can be secured, even if it's not to his comfort level. He's the one actively endangering his son.
It's not that every butler is named Sebastian, it's that rich people call them Sebastian so that they never have to learn their real names (making them replaceable.)
@icarushector Patience. This only corresponds to chapter 11 in the Light Novel. There's currently 203 translated chapters and 30 side chapters. Plenty of time for surprises.