All but the very cheapest of boards have at least six rear panel USB ports. As above, some are USB 3.0.
Eight to ten happens on more expensive boards, but it's unusual.
Most modern boards also support four front panel USB 2.0 ports, and two USB 3.0 ports. Chances are that your parents' build only supports 4-6 USB 2.0 ports.
USB support doesn't seem to have massively moved.