Heidi,
you will not stick out like a sore thumb with kids unless maybe you did a Crystal cruise - HAL, however, is a medium sized ship - not that small - the smaller ships are the RSSCL; at any rate, HAL is a wonderful family line, especially when you don't plan to use the kids program all day - the staff are just so attentive and so affectionate toward little ones!
MamaQuack