juniors in clubs

hi i was just wonder in whats the age a junior becomes a senior in angling clubs i think its 16 if it is what do ppl think off it been 18 and then turn senior because as it is we only have 3 juniors that fish our comps and maybe it would make it more interesting for them if there where a few more juniors fishing for the prizes

not 100% on this but i think they count as juniors if they as 16 and under the year they join the club, even though they can fish an inter-provincial competition as a junior as long as they qualified to fish it in the year they turned from 16-17, when 17-21 they then become youths in the clubs an over 21 they are seniors..

as i said I'm not 100% on this but that's my understanding of it from being in a club..

hi cheers for reply
i think myself 18 would be the right age for a junior to become a senior in clubs it should add a few more juniors to the comp and make a match of it