Oak seedling 15m away from house in field

I've got a few oaks, mostly different types for interest, they will never be allowed to grow to full size, not in my lifetime anyway.

 

I asked that to , he said its a l shaped field the narrower strip is in front of house where field is good and flat also wants tree where it can be seen other part of the field slops down , I did tell him just plant a sorbus our a crab apple and stop being difficult