Two or three things to add - first, I'm not looking to make a ton of money of course, I am trying to work it out so that my primary income is from my part-time web contract work. That figures into number 2, which is hiring: employees are _incredibly_ expensive here - payroll taxes for a full-time worker are typically 150% of what you pay said employee. No, that's not a typo. For the most part you'll pay your worker X and then you'll pay 2X to the state. There are certain dispensations available if you're a new business and you're in an area without many other options, and I fall under both categories, so that'll help. But it's certainly not 30% like it is in the states. That being said, however, you don't pay people super great either - 2000 / month takehome is considered really good pay for the restaurant biz here.
Third thing, I guess pertaining to lifestyle, my only fear is that I'll turn into some sort of cave-dwelling gollum creature who never ever leaves the bar and I will never see my kids. But of course that's not very realistic, as most places around here don't open until, earliest, 11am for lunch. I suppose I'd be willing to give up on 'calm evenings' M-F if it meant I'd be able to hang out with the kids in the mornings.
A restaurant may open at 11am but you will have people there much earlier doing prep work and accepting deliveries.