It would appear to be possible but with higher fees and the greater likelihood of funds being held on reserve for 30 days to prevent chargebacks...
https://www.paypal.com/uk/smarthelp/article/what-are--paypal-here%E2%84%A2-reserves-faq3420
"For example, if you process a total of $600 in keyed-in or magnetic stripe transactions over a rolling 7-day period, $100 will be held for 30-days. If funds are held in reserve, you will be notified by email and provided details on when funds will be released. The reserve limit is subject to change."
https://www.paypal.com/uk/smarthelp/article/FAQ3430
"Card payments made by swiping the magnetic stripe or manually entering the card details are processed with rate of 3.4% + 20p."
