public async Task DeleteFamilyAsync(int familyId)
{
// Authorize user
// Validate input
#region Validate input
/// TODO: think of a strategy for validation => one solution to have one validation class that creates only
/// one SQL call to check different validations => only one SQL access for validation
#endregion
// Execute business behaviour
await familyRepository.DeleteFamilyAsync(familyId);
// Validate results
// Validate data access rights
// Return results
}