Oh you bloody youngsters. Go off my lawn.
Always wanted to say that, since I am nearly 42 I am obliged to say it, I guess.
My experience is mainly with people between 15 and 45. They are all happy playing 5e without complaining about the limited choices.
I had once played with a friend who insisted of having a long sword that is slashing but finesse... I granted his wish.
My 5 year old son wanted a robo dog.
I just let hims start with an artificer battlesmith at level 3 with somewhat reduced spell and weapon selection.
Other than that: not a single complain.