Mine are not at primary now but I'm sure it was never just turn up for everything.
Tennis was limited numbers and names were drawn out of a hat.......some names never got put in.
Football training was open to all years 3, 4, 5 and 6. The team was selected only from years 5 and 6. Some years there was a half day tournament for years 3 and 4.
Tag rugby was for years 5 & 6
Netball was year 5 and 6 girls.
Kwik cricket was open to all juniors. Only the best were picked to play in inter-school tournaments. Only boys who also played for local clubs were picked. Some parents were not pleased when year 3s were chosen over the older ones.
Recorder group was open to all juniors.
Chess group was for the more able.......Caused lots of trouble!
Arts and craft was open to years 2,3,4.
There was a choir. I think that was probably by invitation.....mine were not invited.
Handbells everyone wanted to have a go but very few were chosen because there weren't many bells and the person running it could really only cope with well behaved DC. Only year 6 got chosen.
The whole school (except year R) went swimming every week. Teams for the galas were selected by the HT and all those chosen swam for local clubs.
Cross country. Anyone who wanted could run around the school field at lunch.
For the competitions. The fastest 4 boys and 4 girls were taken from years 3, 4, 5, & 6.
Science club was open to anyone willing to pay.
Cookery club. Numbers were limited and DC got a go on a rota. Strongly suspect it was a bit like tennis.....some never got a go.
French was again open to anyone willing to pay.
There were other clubs at various times. If they were run by parents or teachers they were free.