Earlier quoted context omitted.
I wish I could get my son to exercise twice a day. He hates going outside. He prefers his exercise running around in Minecraft, and if he does get it in real life, it's jumping around the living room.
Be a parent. Set rules and consequences. Outside time or no Minecraft seems like a no brainer. Interact and get him to join you in things you like doing outside. He’ll probably hate it for 1 month or 1 year, but it’s your responsibility.
We do set rules, it's just that we don't always maintain them very strictly, and he loves to bend them. And when he does play outside to get more Minecraft time, he thinks 15 minutes outside it enough.
It seems he just has no idea what to do outside. As a kid, I regularly played outside, probably because I had to, and so did the other kids in the neighbourhood, so we played outside. But none of his friends plays outside, so there's nothing to do for him outside.
What doesn't help is that we live in a city: no backyard, no fields or forests behind the house, and watch when you cross the street. Plenty of playgrounds fortunately, but the youngest, who loves to play outside, is just 5, which is a bit young to be outside on his own, so he's learning to adapt to indoor play. Maybe playing outside is getting trained out of kids because of the environment we live in.