For random bias yes. Unfortunately, that age group are notoriously difficult to poll accurately. Without knowing how the polling was done, detecting systematic bias is difficult.

E.g. street polling on a Sunday morning, near a church, or mosque will get vastly different results to the same poll near the high street, on a Friday night.

Also relevant. https://xkcd.com/882/

Don’t get me wrong, it’s a worrying poll. Buta lot of studies like this disappear back into the noise, when studied by multiple groups.