Agree, it matters little while the kids are so young but at a certain point, their obsession with privacy and keeping the kids out of sight is surely going to limit the things they can do together as a family.
It will be interesting to see how things develop regarding the children. I'd actually respect them if they tried to ensure they had a normal life, but the fact that they've insisted on giving them prince and princess titles suggests they have other plans.
I wonder what on earth they'll tell them as to why they're completely estranged from their entire extended family other than Doria. I can only assume it will be some version of Harry's narrative in Spare, which is sad as the kids will grow up with the idea that the family don't want to know them, and possibly with some bitter and hurt feelings about that.