I agree. Someone on here (
@Fortitude I think) mentioned about there being a hierarchy to which team mate, players defer possession to. Its a real thing and every team has one. I believe the version of Mainoo England needs, is one that does what he currently brings to the table and is also number 2 or 3 on that hierarchical chain. He's not high on that chain for a poor united team at the moment, so I can't imagine he'll be there for an England team with Jude, Foden, Saka, Stones and Rice on the field. Heck, wven Maguire.
This is why it sometimes seems like the game passes him by.
To be clear, I think he absolutely already has the talent to be really high on that chain as is. The issue, is more about commanding respect and trust, which just takes time. The only player I've seen do this at a young age is Cesc.
So yes, I wouldn't be suprised if Southgate doesn't start him.