I know of two families who did this, and they changed the usual spelling to accommodate; Ceon instead of Sean, and Jorja rather than Georgia. Not sure if they planned to from the start, but it sounds like they did. I suppose it makes name tapes on clothes easier, all same initials!
dd & ds both have names beginning with the same letter. i chose dd's name, but with ds, we had 3 names we liked, so we let dd chose between the 3, and she picked the one that began with the same letter as hers.
I have purposefully avoided doing this! I don't think it's a bad thing, and sometimes it just happens accidentally but I always imagine the confusion when you get a letter addressed to 'M. Smith' and there are 3 of you it could refer to. Not a problem when they are little, but when they start their teenage years it could be a problem.
A bit of a silly reason to actively avoid doing this, I know, but it's just one of those things that gets into your head!
My 2 have both got same initial, unintentionally. Never thought about it till started discussing names for number 3! What about those people on Discovery channel the Duggars ( I think) 17 kids all starting with J...crazy
dogs - i don't know if we would, we're not planning any more so hopefully it won't ever be an issue. i'd feel really cheesy having 3 all with the same initial, but on the other hand, it may look odd with an odd one out. and to make matters worse, our dc's even have the same 2 first letters of their names both are Lu.....
I would have considered it for dc2 if it had been a girl as I liked a few girls names starting with the same letter as dd1. As it it I'm expecting a boy and neither of us likes a name starting with the same letter so there is no issue.
DH and I have the same first and middle initials. Couldn't decide if it would be sweet or naff for children to have them aswell. If DS had been a girl, then only name we could agree on would have been he same initials too. A whole household of XY Surname would have been a bit much.
dd & ds have the same first letter (although sounded quite differently) - wasn't really a consideration. WOn't be having a third, but would probably avoid another of the same letter if we did. Know a family of 5 children with the same first letter.... (some of the later names are ,ahem, unusual)
DH and I have same first intials...A&A. we are ttc for our 3rd dc and the only girls name i really want begins with A and i seem to be drawn to boys names beginning with R. DS 2 intial is R but if i went with R again for a boy my poor DS 1 will feel all left out with A&A and R&R/ or another A