Yeah this has been an issue for years and years now.
I always play a journeyman save starting as low as I can and working my way up. By the time I land a top PL job the squads of the Big 6 all have an average age of about 29. As if they're allergic to youth prospects.
Miles Jacobson?
He didn't invent it. Two brothers did back when it was Championship Manager. Miles got on board and has been managing director for decades but it wasn't his baby originally.
FM is designed in such a way that it could play on a pretty low-end PC; you'd just have to trade off some things like not being able to utilise the 3D match engine and having fewer players / leagues loaded into the game database.
All of it is customisable in the game and you get a handy '5...