Allotments 4 All

Hi, I have planted various seeds in trays, cabbage, cauliflower etc. and each started off well but now seem to be a bit top heavy and bend / fall over. Is this too much / little water or light. Any advice welcomed.
TonyM

Could be to little light Tony, but with brassica plants you can counter act this by repotting them and sinkinking them down into the compost up to just below the first leaves

Thanks, have taken the best examples and potted individually now, will see how they go.
TonyM