Some good thoughts below and I don't want to be too repetitive, so I'll just add some new thoughts.
Family A: I have one friend whose husband thought moving away would solve everything. He decided that he would be happier moving to rural Maine, although he had few job prospects. He did nothing to treat his ongoing depression, quit his well-paying job with good benefits, and left the state. It was the last straw and she filed for divorce (which was coming anyway but she wasn't going to quit her job and leave her town, relatives, kids' friends and so on). Husband moved, the divorce went through, and he remarried. Soon thereafter, his semi-rural life wasn't good enough so he moved even farther away and now rarely sees his children. And he's miserable. He didn't treat his underlying depression.
Family B: Another friend's husband was miserable in his corporate lawyer job, and his wife said she'd support a change. He needed time to figure out his wishes, but he had a strong leaning toward wine importing. They took over a year to plan it. They rented out their house, rented a small house in a French village, and spent a year on sabbatical. They home-schooled the kids (she did some subjects, he did others), and they traveled all over Europe via train and car, giving lessons to the kids and scouting out vineyards. He studied wine and wine-making, she brushed up on her German and he on his French,and they made it an adventure. It was life-changing for them. They came home with a renewed verve, and he had a foundation to start his wine importing business, which has been successful. But the year away wasn't all about him - it was a team effort with a set time frame.
The difference is not that Family A stayed in the small town and Family B chucked it all for new experiences. The difference is that Husband A didn't have a plan and Wife A wouldn't just bail out for that. Family B took over a year to make a plan, study up on the options, and find a place both could embrace. Husband B knew he had a year, more or less, to find some answers. If it didn't work out professionally, they would still celebrate the year of exploration and enjoy everything it had to offer, and they would then come home to the city they all knew.
See the difference? Family A was all about the husband and not the wife/kids. Family B was a team effort with good financial planning.
What I see with you two is that you aren't on the same page and you aren't seeing the advantages of the other one's point of view. You hate everything about his idea (you don't say what the "experiences" would be or seem to find value in them - perhaps he hasn't articulated what they would be). He hates your town and your relationship (business) with your mother, and the confining nature of a tiny town.
So, marriage counseling and goal planning (perhaps with a life coach and financial planner) would be logical next steps. Otherwise, at least one of you will remain miserable, and that's not good for a marriage.