It's supposed to be like a restaurant where all the waiters share tips. It is in everyone's interest that one, all customers are being served well and two, that all waiters are pulling their weight.
No. There may be occasional cases where that's true, but it's almost always better to get another pair of eyes (and accompanying different experience) on a problem. There is some great software that comes from solo devs, but most commercial projects are simply too big for one person to accomplish in the time necessary. Business software is very much a team sport.
Why would I wait for some meeting the next morning?
You wouldn't. Why are you under the impression that scrum prohibits communication outside standup?
Daily scrum is a floor on communication, not a ceiling. It guarantees that focused communication happens at least once a day. Sometimes people miss slack posts and emails. Scrum makes sure the entire team is aware of progress and blockers. It's a tiny slice of the day when it's done properly.