Yeah, random is at best something for people who've Never played before, to get into the spirit of "R"-oleplaying.
Most people I've played with (anecdote) have some idea of what they want to play ---> they like being in charge of themselves. I guess that's called Adulting these days?
I mean, lets say the DM hands out a random something at the start.
Yours happens to be called : Mrs Pumpernickel's Secret Sauce
But it gives you :
Skill Focus on Sleight Of Hand
Somebody new might be dumbfounded or mystified about fitting that into whatever Barbarian they'd just started thinking about.
A hard core c.o.-er can react to it any darn way they choose (and not just cuz aDMg sez so)
but would know the relative effect on the game is near nothing. Oh wait.
It gives me 5e Inspiration?! Fine :P
Full Stop. Soliloquy time.
There was this old lady at the Tavern that'd give me snacks if I censored censored censored-censored ...
Kthanx now lets have advantage on tickling this Goblin eh?