Should younger hostesses at a restaurant be showing off cleavage?

is this somewhat higher end chain restaurant I go to , a lot of girls work there , other day I couldn't help but notice the hostesses and what they were wearing or not wearing.

at some point in the night when I was sitting at bar , 2 of them had to literally stand rate beside me and I sort of noticed them and got to see a bit more than I was expecting. both of them were wearing dresses and they were somewhat revealing showing off a fair amount of cleavage , which sort of surprised me

I don't really know either of these girls but I know the one is just finishing high school this year and the other one might be 18 , at that age it seems a bit off to be showing off so much cleavage at work mostly in front of older people
Updates
+1 y
its gotten even worse or better depending on how you look at it , the one has seriously big boobs for her age and her dress really shows them off
Should younger hostesses at a restaurant be showing off cleavage?
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