help?

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I posted here a few months ago asking for opinions on the names me and the husband have picked out for our future children. We have recently started trying for a baby and have slightly altered some of the names so I was just wondering what you guys thinks.

We are naming our first, whether they be a boy or a girl, Charlie after my grandfather. I was sort of confused on my last post when people told me Charlie isn't a good name for when they become adults and to name the baby Charles or Charlotte. I always thought Charlie was an adult sounding name but I don't know. Anyone think that it's not a good name for adults? If it helps at all my grandfathers actual name is Charlie, it's not a nickname.

Anywayyys all the names we picked out are -
Charlie Elaine, if we have a girl first.
Charlie Donald, if we have a boy first.
Alison Elaine, if we have a girl any time but first
Liam Donald, if we have a boy any time but first

The middle names have significance as well just so you know. Oh and I was told Liam isn't an adult name either and to use it as a nickname for William but we like Liam because we are irish and it feels like a nice strong irish name.

Opinions? Thanks in advance.