There’s no one list. For all the things you mentioned, they are allowed to drive tractors or quads, get married with your parents’ consent, have kids, etc.
Think how weird this would be to someone from the UK a century ago:
"You can have a bisexual orgy on your 16th birthday where someone gets pregnant in celebration of their first time voting, but under no circumstances is the woman allowed to be married until the kid is 15 months old, at which point she can marry another woman. Photographs of the event will, in many jurisdictions, be treated as a criminal offence even though the act itself isn't and those same photos would be fine at 18, which is also now the age when they are no longer subject to a mandatory choice between ongoing education or an apprenticeship."
True, but even if you’re only in Harrogate until you’re 18, you are still signed up until you’re 22, meaning you can be killed on a battlefield aged 18 because of a decision you made when you were 16.
In the context of the discussion on voting, I think the “decision” part is the key point here.
https://www.gov.uk/government/news/legal-age-of-marriage-in-...