Football Attendances

Probably been brought up before but why don't the clubs reduce admission prices to something like a fiver a pop
My son is a Motherwell fan and on occasion I take him down but today his mum and aunt took him. Now, his aunt had never been to a game in her puff before but was actually excited and enjoyed it thoroughly. However she did say at 23 to get in she wouldn't go every week although she intimated if it was like 5 6 7 pounds or so she definitely would.
Looking at that empty stand today behind the goals....such a shame. Drop the prices n get the fan back.