RE: Would like to know what you think

I bought a dress with long sleeves.  There is a deep V in the back.  I plan to wear it only to parties. 

1. I obviously cannot wear a regular bra.   The dress is not transparent, so I don’ t need something like Nu bra.  I have worn dresses before without a bra.  But  I am still not totally comfortable with the idea, since there is no support.  I am between B and C.  do you feel comfortable without wearing a bra?

2. The fabric around the shoulders don’t stay there very well.  It will slide past the shoulders to my arms because the opening there is big.  Besides taping double-sided tapes inside the dress around the clavicles, is there a better idea?

3. I see many people younger or similar age wearing dresses like this on the streets.  But I could never wear a dress like this on the streets.  I was born in China in the 1970s. So this is because I am old-fashioned?

Thanks for your input.