Why the Virgin Birth?

Exodus 13:2 𝘚𝘢𝘯𝘤𝘵𝘪𝘧𝘺 𝘶𝘯𝘵𝘰 𝘮𝘦 𝘢𝘭𝘭 𝘵𝘩𝘦 𝘧𝘪𝘳𝘴𝘵𝘣𝘰𝘳𝘯, 𝘸𝘩𝘢𝘵𝘴𝘰𝘦𝘷𝘦𝘳 𝘰𝘱𝘦𝘯𝘦𝘵𝘩 𝘵𝘩𝘦 𝘸𝘰𝘮𝘣 𝘢𝘮𝘰𝘯𝘨 𝘵𝘩𝘦 𝘤𝘩𝘪𝘭𝘥𝘳𝘦𝘯 𝘰𝘧 𝘐𝘴𝘳𝘢𝘦𝘭, 𝘣𝘰𝘵𝘩 𝘰𝘧 𝘮𝘢𝘯 𝘢𝘯𝘥 𝘰𝘧 𝘣𝘦𝘢𝘴𝘵: 𝘪𝘵 𝘪𝘴 𝘮𝘪𝘯𝘦.

Luke 2:23 (𝘈𝘴 𝘪𝘵 𝘪𝘴 𝘸𝘳𝘪𝘵𝘵𝘦𝘯 𝘪𝘯 𝘵𝘩𝘦 𝘭𝘢𝘸 𝘰𝘧 𝘵𝘩𝘦 𝘓𝘰𝘳𝘥, 𝘌𝘷𝘦𝘳𝘺 𝘮𝘢𝘭𝘦 𝘵𝘩𝘢𝘵 𝘰𝘱𝘦𝘯𝘦𝘵𝘩 𝘵𝘩𝘦 𝘸𝘰𝘮𝘣 𝘴𝘩𝘢𝘭𝘭 𝘣𝘦 𝘤𝘢𝘭𝘭𝘦𝘥 𝘩𝘰𝘭𝘺.)

Luke 1:35 𝘈𝘯𝘥 𝘵𝘩𝘦 𝘢𝘯𝘨𝘦𝘭 𝘢𝘯𝘴𝘸𝘦𝘳𝘦𝘥 𝘢𝘯𝘥 𝘴𝘢𝘪𝘥 𝘶𝘯𝘵𝘰 𝘩𝘦𝘳, 𝘛𝘩𝘦 𝘏𝘰𝘭𝘺 𝘎𝘩𝘰𝘴𝘵 𝘴𝘩𝘢𝘭𝘭 𝘤𝘰𝘮𝘦 𝘶𝘱𝘰𝘯 𝘵𝘩𝘦𝘦, 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘱𝘰𝘸𝘦𝘳 𝘰𝘧 𝘵𝘩𝘦 𝘏𝘪𝘨𝘩𝘦𝘴𝘵 𝘴𝘩𝘢𝘭𝘭 𝘰𝘷𝘦𝘳𝘴𝘩𝘢𝘥𝘰𝘸 𝘵𝘩𝘦𝘦: 𝘵𝘩𝘦𝘳𝘦𝘧𝘰𝘳𝘦 𝘢𝘭𝘴𝘰 𝘵𝘩𝘢𝘵 𝙝𝙤𝙡𝙮 𝙩𝙝𝙞𝙣𝙜 𝘸𝘩𝘪𝘤𝘩 𝘴𝘩𝘢𝘭𝘭 𝘣𝘦 𝘣𝘰𝘳𝘯 𝘰𝘧 𝘵𝘩𝘦𝘦 𝘴𝘩𝘢𝘭𝘭 𝘣𝘦 𝘤𝘢𝘭𝘭𝘦𝘥 𝘵𝘩𝘦 𝘚𝘰𝘯 𝘰𝘧 𝘎𝘰𝘥

Was the virgin birth a necessity to keep Jesus from being tainted by any connection to Adam? I would say no.

Mary needed to be virgin so that her firstborn could be conceived of God (a holy conception) as per Luke 1:35; and then as the firstborn son of Mary and the son of God he was also sanctified by law as per Luke 2:23.

Christ was a man child and we are told he "was in all points tempted like as we are, yet without sin" (Hebrews 4:15), therefore from the inspired record we see Jesus, although conceived of God, every bit a man, sanctified from the womb and 𝐧𝐞𝐯𝐞𝐫 sinning.

Jesus was the perfect sinless lamb from birth.