Is abstinence till marriage a deal breaker?

So I am currently 26, and still a virgin, as I am following abstinence till marriage. Not for any religious reason, more personal choice. But most people I tell it to, seem taken aback and that it is a waste of time. I don't believe that a relationship needs sex to be successful, but I'd like to hear your opinions on it.
Is abstinence till marriage a deal breaker?
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