Rosieposie
Apologies for my careless use of 'normal'.
For the record, I am not being sarcastic about Alexei. I do not see him as a 'brave little boy' blah blah blah. (Incidentally, I detest the use of 'little' for anybody over the age of three).
I think that it was inevitable that his personality was to a considerable extent shaped by haemophilia and the cosseting and spoiling that resulted from it. Obviously physical conditions, or whatever we call them, will have different effects on different people. One of my maternal uncles was partially deaf from birth, another deaf to about the same degree as a result of being blown up in WW2 at the age of 15. Both got progressively much deafer as they got older. They were completely different people. The first had, to use that horrible modern phrase, 'come to terms' with his deafness, and had what might be called a sunny disposition, although he had the particular misfortune that his great passion and ability was for music (he was a very gifted pianist, even though he could not hear 40% of the notes on the piano). The other was a very ruthless and driven individual (could be charming, but definitely not a man to cross). To what extent the difference was innate and how much was due to one being deaf from birth and the other from a teenager is an open question, but I think Uncle No.2 (actually the elder) was going to be much the same anyway. Losing his hearing (and his original career as a Merchant Navy officer) exacerbated his existing traits. With his brother, we simply cannot know (incidentally, he wasn't treated in any 'different' fashion as a boy because of being deaf, because nobody realised he was all that deaf until he was turned down for military service because of it).
Back to Alexei. I have to admit that some of my view of Alexei is a backlash to the 'sweet little darling' view which largely prevailed until fairly recently. I think he was frustrated by his illness, and not being able to do things like riding a bike. I am quite clumsy and uncoordinated (got kicked out of a karate class as 'unteachable', I am an Army Cadet Force instructor but a disaster on the drill square), and get thoroughly frustrated over the time and effort it takes me to pick up any new skill. Maybe undiagnosed dyspraxic, I don't know. Being laughed at because of it doesn't help, nor does the fact that my brother is sufficiently well-coordinated to have been a budding gymnast in his younger days. I'm 50 now, but the humiliation is still there.
With Alexei, on the one hand you have the cosseting, the spoiling, the being babied, on the other the frustration. Plus when he died he was an adolescent.
Ann