Just starting out with bitcoin as an anonymous way of getting donations

Is buying the approximately $55 worth of Trezor One necessary? (cheapest option for hardware wallet)

Basically I want to use bitcoin for getting donations anonymously.

But a problem with that is that many people might not be familiar with how to start Bitcoin so possible donations might go down, and having to pay $30 to buy bitcoin the first time might be big money, if they only want to donate a few dollars?

I was thinking I should just start with the free options and if the donations start becoming substantial, I could switch later?

But problem with this is that if out of fear that someone may steal by bitcoin if I don’t go with the hardware wallet, I would have to withdraw my bitcoin to USD frequently and that might cost fees?