SunExpress Splits Me from My 8-Year-Old - My Online Check-In Shock

I rushed to complete my online check-in for SunExpress Airlines the moment it opened. Despite two-thirds of the seats being available, I was stunned to find that my 8-year-old daughter and I were assigned separate seats. This is completely unacceptable - separating a father from his child just to push extra seat sales is a new low.
Even budget airlines typically seat passengers traveling on the same booking together. The fact that SunExpress is pulling this trick on a ticket that cost 270€ one-way is outrageous. Trying to squeeze an extra 10-15€ for seat selection through such underhanded tactics is simply not okay.