I think you would want to start accepting it at the very start alongside fiat. Accepting Bitcoin would:
1. Remove processing fees (card payments like Stripe charge 2.9%)
2. Remove chargebacks. You would need to pay quite a bit for every chargeback and spend a lot of time dealing with friendly-fraud disputes on Paypal.
There's a lot of free services to get started like Poof
https://www.poof.io/ or BTCpayserver
https://btcpayserver.org/ so might as well start today.
There's probably been an uptick in accepting other currencies as well. I'm sure networks like Litecoin or Solana are relatively popular options as well.