How about 2 adults for £30 as well.

how about they just get a season ticket instead

No good for those who can't do every game, or for attracting the casual/occasional supporter to pop along.

It should still be £15 rather than £20, but this is a step in the right direction.

why not get the family ticket for 2 adults and 2 kids and two of you dress up as kids simples really

The way people go on about sundays im expecting a full house against Hull KR bank holiday

The thing is knowing you, you probably actually are expecting a full house. Sundays/Fridays it makes no difference on the whole.