14yo DS is going into year 10 and is studying rainforests as part of his upcoming Geography GCSE. I'd really like to take him on a trip to Borneo next summer so he can see the effects of deforestation, palm plantations etc.
However, I don't want to take 11yo DD. 1) It's expensive and a study tour more than a holiday. 2) It would be nice to do something with just DS before he heads off into independence.
We're going on a nice family holiday next year so she won't be going without. I'll also explain to her that this is for DS's GCSEs and I will do an equivalent trip with her when she's the same age. By the time she gets to that stage, DS will hopefully be at university and so wouldn't be coming on a study trip with his little sister.
Is this a reasonable plan or am I being unfair?