It may cost you like $1000 to get a PC good enough to play Planet Coaster.
Your PC should have a quad core Intel Core i5 or i7 with at least 3.2Ghz clock speed. It should also have at least a dedicated GPU. The GPU on my HP laptop (AMD R7 M360) can run this game but only on 720p low everything settings on small parks. Something like a GTX 1050 or a GTX 970 or GTX M980.
The majority of the market use PC not MAC which is why game developers choose PC over MAC in many cases.
If you want to play on 1080p higher settings, you need a high end PC. Something like a GTX 1060 and a quad core i5/i7 with at least 3.4Ghz.
I think EA released The Sims 3/4 on PC first before they did on Mac. I give thumbs up for Mac looking cute and sleek and being a manufacturer not obsessed in making most of their products boring black colour. But Mac has compatibility issues with many commonly used software and their hardware is overpriced and not really that powerful for the price they're asking.
Laptops are great for young people and students as they're portable and light.
Planet Coaster is a very demanding game. it is like 10x more demanding than The Sims 4. So you need a CPU with a high clock speed since the game only utilizes Directx11 which only efficiently uses only one of your CPU cores. I have an i7 6700k 4.2Ghz and GTX 1070 and on my super park I play 4k higher settings and get 16-22fps. I myself am considering getting a GTX 1080 Ti and an i7 8700k which has a higher turbo boost speed and 2 more cores. Planet Coaster will utilize all your CPU cores, but being Direct x11, it will not utilize all your CPU cores to their full potential, a job which Microsoft's Directx12 Windows 10 would be better at. But understandably not everyone like Windows 8/10. I like 7 and 10 but don't like 8 and vista.
Here's a link of what you want to be looking for in a laptop. These are the official recommended/minimum specs for this game:
https://www.planetcoaster.com/en-gb/system-requirements