The York princesses will never be left alone solely because of who they are. We also see (and you can verify the press' attention) Lady Kitty Spencer always making the tabloids simply because she eats or she attends something. Just because she's Diana's niece. Same with Pippa Matthews because she's the sister of the Duchess of Cambridge.
There's no fading off into the sunset with these people.
Diana had 9 nieces - the only one we really read about is the one who needs the media coverage to further her career.
Likewise, Beatrice needs her title and the press attention to further her business aspirations - her title and high media profile open doors for her that her education, experience and skill set would not.
Eugenie is in the business of selling art - her title and high profile bring her into contact with the wealthy art buyers she needs in her career.
If either of them had chosen a career that did not require that they have the right 'connections' IMO they would have no problem staying under the radar with only an occasional blip when they went to church with grandma on Sunday at Christmas. They chose otherwise.
I'm not criticizing their choices - they are taking advantage of the position which they were born to - however, doing so was not their only choice and I think it's a bit disingenuous to claim the press harasses them when they've chosen careers where they need to be high profile and their charitable endeavors appear to be aimed at garnering press coverage to encourage others to donate money.
Eugenie could have been a curator or researcher of art, for example, rather than a seller needing wealthy connections.
I'm still not sure what Beatrice is actually doing, so can't say where her interests really lie.
Both Eugenie and Beatrice could have actually volunteered and done work with charities they were interested in (you know - boots on the ground) rather than just showing up or visiting, or doing a marathon with their buddies to 'raise awareness' and encourage others to donate.