No, it's not okay, and I would never recommend it. But if someone thinks it's okay, then keep it on the iPad, don't do that crap on a real computer.
You don't need to buy the absolutely top end tablet. Jesus, the whole point of using the iPad in this context is that you don't need the capabilities of a full computer.
The MacBook is not a tablet alternative, the tablet is a MacBook alternative. Let's not let them screw things up by giving them THAT idea.
It's been really strange to me that Apple hasn't converged them when so many other OEMs have added touch capabilities to their PCs. Apple is slacking on this one big time. The iMac should have had touch before the HP TouchSmart, now Microsoft's Surface Studio has dropped and includes stylus support and Apple only just got their Pencil out but it requires the higher end iPad. Strange thing, this current market.