Is it possible to invoke a change in the current voting system?

They changed over to a different voting system after the previous one became a cluttered mess.

I think they are always looking to get as many games backwards compatible as possible.

Currently it is not possible to vote for BC games on Xbox Ideas, since there's no active Idea Drive about BC games.

It Was possible to vote in backwards compatibility but it's not anymore since the site has changed

TBH and as i'm sure you know there is no real way to stop people from abusing the system,

the only thing i can do is track users votes with cookies and IP.

The site will go live as a BETA first, we'll then find out wether the 10 star system

works or not.

If we find that the system is being used unfairly then i may have to change how people

vote, possibly by only allowing a 'thumbs up' vote, meaning users will only be able to give

positive feedback.

Do you have any ideas of how this can be handled?

Unfortunately, it's not possible to make an adult account a child account.

While it's possible to move your son's gamertag account to a different email, this will currently result in your Microsoft account to be deleted after the move. So that's usually not an option for the parent either. Also, this doesn't also change the "adultness"
of the account.

You should vote for and add your comment to
this suggestion here.

If enough people vote and comment on that idea, Microsoft will implement the changes in the future, so you can change your child's account.