When 5e came out, I had had no experience at all with Dragonborn, and honestly, after looking them over, I found them as a PC race pretty strange and kind of unpalatable.Would you like to know my deep secret?
I don't actually like dragonborn. I have never had a dragonborn PC, and I virtually never use them when I'm GMing.
Do you know impact that dislike has on my games when I GM, and a player wants to play a dragonborn? 0.0%.
If your game has enough room to allow for some customization, than it has enough room to allow for a customization that matters to a particular PC.
But when one of my players asked to play a Dragonborn for the then new campaign, I said ok. His character went on to have one of the coolest/most memorable arcs of that 4 year campaign.
That said, I really do sympathize with the crowd that wants to exclude. People have fun in different ways. If a DM has a concept for his world that doesn't include Dragonborn, Tortles, whatever - players should take that into account. There are SO MANY things available, there's got to be a concept where everyone is happy! And if not, not every group/DM is a fit for every player.


