I just posted on another thread saying we've travelled a fair bit and my dc19 said she's very grateful for this. I've just counted though and they've been to 8 non UK countries over 3 continents, which doesn't sound a lot. We've been to some countries twice, but different areas. I didn't include transit countries.
This is not a stealth boast BTW as we've always done it on the cheap, they've been taken out of school and our accommodation would leave most of MN pearl clutching!