"Most UK babies over a few weeks old are fully bottlefed."
This is just NOT true. In my county (pretty mixed in terms of depcat/other socioeconomic indicators) the % of babies exclusively or partly BF at 6 weeks is something like 56%.
HVs collect and report these data nationally. So if you're interested in finding out, you can. Also I would really disagree that 'society' pressures women into feeling that FF is the 'normal' or 'acceptable' thing to do - anyone who's had a child in the last ?10/20 years will have had the BF message loud and clear.
Personally, I couldn't BF longer than about 3 or 4 weeks. I had a weird pregnancy-related tendinitis in my hands and couldn't hold my lovely baby. Plus when her milky vomit after feeds was blood-streaked from my shredded nipples, I figured my sanity was more important. I'd not have thanked anyone for commenting on my choices, and I don't give a monkey's what anyone else chooses to do.
We're doing a decent job, I think, in getting the BF message across but ultimately it is up to the individual. And I don't see any single adult who is obviously disadvantaged by having been FF, or even a child for that matter. It's part of a whole range of things you can do (or not) to give your child the best possible.