Does it sound wrong if I don't take my daughter to a concert and instead take another child instead?
Why would you not take your daughter to a concert?
As it turns out, both of my children are going with me
It is good to do something fun with your kids. It would be wrong to take one child at the expense of another, though, so it is good that you are able to take both of them.
Yes, however, I only have one ticket for sure. What should I do?
If you only have one ticket then you shouldn't take anyone, because while it is nice to take your children to fun things-- one shouldn't get precedence over the other. That, or sit them down and ask if one wants to go and the other may not want to.