Feats at level 1, for all

I allow the variant rules for humans on page 31 of the player's handbook and I'm currently toying with the idea of allowing all races to do the same, but they would have too take penalties to character creation to get it.

For example. The Dwarf page 20 in the 5e player's handbook.

Constitution Stat bonuses would drop to only a plus one
Would lose the Darkvision ability
Also lose Combat Training in half of the lists proficiency.

Is it worth a feat? maybe?