Its simple... they are aholes who know Omegas cant figh against Alpha phermones. So they use this to force their own agenda onto Omegas, as to them Omegas a beneath them and not even onsiders humans.. just their property.
(╬￣皿￣)凸 For the jerk pair of them
Unfortunately, omegaverse stories, in general, are FILLED with assholes who think that they can force Omegas to do whatever, marry whomever and act however, they want them to. It sucks massively! And, yes, this father and alpha duo are the same types of assholes!!! (╬￣皿￣)凸
Damn the father and the new Alpha are such jerks. Like what higher authority makes you believe you have the right to force an underaged person to marry/ have a relationship with an adult they just met?