ESB have a Teen Saver account, 2.3% interest (gross) but also a €25 bonus at 6 months, if the average of €25 at month end has been maintained, which might persuade the youngster to keep funds in to that point at least.
AIB do a current account for a second level student, earning interest of 1.1% (gross). The trouble is, interest on a few hundred even is not going to amount to any incentive to keep the money in the bank. There is an ATM card available, and AIB pay the card fees.