@Pancakeorcrepe 450sq metres isn’t that big, it’s room for 500-600 people to sit in a lecture layout, realistically that’s the number of kids a lot of schools have.
OP, I wouldn’t pay more than £7.50 for the kids, I certainly wouldn’t want to pay for me.
Where you go to £10-£15 I start to compare it to ‘a full day out’ rather than ‘an activity that gives me a break from the kids while my partner takes them/or visa versa’.
A full day out, theme park or zoo I pay a lot more for, but it’s a family day out with DP and the kids not just a one off activity.
I would benchmark your pricing locally against other attractions and then look again at your features and benefits - what can you or do you offer that they don’t? For example, free parking for me is a plus, anywhere that doesn’t offer free parking and then charges admission goes down in my estimation because it becomes a mission.
I’d also think more about how the market has changed. Yes you’re restricting numbers, it’s covid- safe etc - that’s not a benefit I’d pay for, that’s now the cost of doing business.
In truth I’d be much happier if the activity was outside, because we’ve all been cooped up like chickens and some fresh air, green landscape and a nice view would feel more idyllic than the inside of my children’s school hall.
So what can you offer me right now that I need or that my kids need or want and that I would pay for?
Frankly, the idea of overpaying for an inside activity where I get to listen to other people’s kids scream isn’t fun. If I could use it as a place to meet a friend while our kids play, have a catch up and a nice lunch while knowing my kids would be entertained and (basically leave me alone) I would pay for that.