High-Side N-Channel MOSFET Driving
Is this an acceptable way to drive a mosfet?

Quite possibly not acceptable - you have to ensure that the gate drive voltage can fully turn on the MOSFET and, because the MOSFET source is expected to reach the same voltage as the +14.5 volt supply, the gate drive voltage needs to be several volts above that (anything between 4 volts and 10 volts higher).
So you might need a gate drive voltage of around 20 volts. Then that comes with a bit of a price because if the source load is shorted out, you might exceed to gate-source voltage of the MOSFET. A lot are specified to be +/- 20 volts but, that's right at the limit.