Same for Fidelity. I am not sure if Schwab is the only one of the bigs that caters to the truly small investor just starting out. $2,500 is a huge hurdle for a lot of people.
I have some holdings at Vanguard, and the donation in kind process is significantly more cumbersome than at Schwab. I have been shifting to schwab, even to the extent that when I exit a vanguard position, I will transfer my residual Vanguard positions to my Schwab account, and donate from there.
Also, if you have $2,500 around, you might check out doing an indexed ETF instead of an indexed mutual fund.