I don't think they'd bother with the lightning network, I doubt a lot of people there (except the enthusiasts) know about the lightning network there.
My thought as well. I like what LN aims to do and use it myself from time to time, but the network is so small and largely still unknown, that I don't see how it would benefit those who hold Bitcoin but don't know what LN is.
In order to utilize the LN, they have to fund a channel which requires a regular transaction fee. If you just use Bitcoin to pay for things once or twice a month, you don't need the advantages that LN offers.
To add, a lot of payment gateways for convenience sake accept lower value zero confirmation transactions if the transaction has a sufficient fee included. In other words, your transaction is mostly accepted near instantly.