You also can just use the rules everyone is already familiar with instead of spending the first couple sessions with everyone learning a whole new system
I want you to realise that most systems, including the ones I mentioned, are simpler than D&D. It will not take multiple sessions to learn the rules. For the love of god, you are spending more time arguing against learning new systems than it would take to just learn the new systems.
You also can just use the rules everyone is already familiar with instead of spending the first couple sessions with everyone learning a whole new system
I want you to realise that most systems, including the ones I mentioned, are simpler than D&D. It will not take multiple sessions to learn the rules. For the love of god, you are spending more time arguing against learning new systems than it would take to just learn the new systems.