So would a younger dog be able to learn on smaller fields gates wire hedges in Ireland and be good,then when older bring to England and slip of in massive fen field run no bother in the fens and adopt straight away,would it not be better to being dog smaller fields and then bring to fens at young age get used to both land s at young age,instead of always running Ireland small fields as young age and then when the dog gets older bring to the fens and let out sure dog never ran on massive land like that,does the dog not have to get used to all sort of fields at a younger age than at a older age