The human species is pathetic. The secular, less religious places on the planet, aka the more highly evolved, have already figured this out. I've been to public family beaches in Central America, the Caribbean, the S. US and in Europe where it is common for girls to go topless. And guess what? Everyone pretty much ignores it, including the grandmas, moms and dads and little children.
I've been on beaches in Europe where this is normal, not common. I've seen a number of people arrive at the beach in business clothes, strip naked, and then put their bathing suit on. Male and female. And no one gave it any attention.
I've been with women who have been topless and in other stages of undress on public beaches (and other places but that's another story). My ex-GF was a 5'11' Barbie Doll who would have walked around nude if society allowed. And yes, class, it WAS as much fun as it seems.
Grow the eff up. Get out more. Lose your judgmental, self-righteous, moralistic desire to impose your own religious nonsense on the rest of us. Evolve for Christ's sake.