I don't think I would be ashamed because I would not think it would be my fault.
I mean, I'm not sure I understand where shame comes from anymore. Like when I was young I was ashamed of my body, like having a short penis and various body deformities, but now I don't give a single fuck about those because these are not things I can do anything against. Anyone who would mock me for these would be an asshole and since I've gymmaxed I'd gladly punch anyone who dares mock me for my physical appearance.
Now maybe shame is about behavior. Did I do anything wrong that made me a virgin ? Like masturbating and watching porn too much ? Not humiliating myself enough by asking girls out ? Even if it's true, well I didn't know better. Everybody and their mother said that masturbating is totally fine, and females keep saying that it's bad to harass women, so...
Basically fuck all these people who would shame you about being virgin. It's not like any of them know how to fuck women, they all just tried something that happened to work for them. There is no universal way, so STFU.
Truly shame is a weird concept and I'm not sure I understand it properly anymore.