These children may be discriminated against in a view of appearing fair or it may appear that these children get priority due to a parent being staff. The latter I feel happening in the school my 3dc attended.
Children of staff seem to have a disproportionate amount of leads in school plays
Get 1st dibs in 1st come 1st served afterschool cubs.
Get picked for special activities ie things with press involved.
School events are scheduled for their benefit.
Aibu and reading too much into this.