Hi everyone! I'm not a parent but Mumsnet seems to come up every time I search on Google for property advice and the threads here are very helpful, so I hope you'll not mind the intrusion 
I'm having a huge dilemma and need thoughts from people who've been there, done that... In brief, I'm a (30-something) first-time buyer planning to buy my first home in the near future. My job is in central London & I have no plans to change that.
I'm in a fortunate position where I should be able to afford a 2-bedroom flat in London within a 45 - 60 minute commute of work. Nowhere fancy, but nice enough. So far so good. BUT on the other hand if I did buy a flat tbh I don't think I could see myself living there forever - after years of living in flats and feeling cramped, surrounded by neighbours upstairs and downstairs, etc. I think I'd eventually want a house of my own. The way London prices are, I doubt I'd ever be able to upgrade so I'd probably eventually be looking at moving out of London and commuting - probably in 5 years or so.
Meanwhile, some of my (older) friends who live outside of London and do the daily commute argue that buying in London is overrated and I should join them in the outside world straight away. (But, of course, they benefited from the astronomical price inflation of their tiny London flats over the last 10 years or so, which doubtless helped them buy their v nice commuter town properties!).
After doing the sums I've figured that I could either buy a 2-bed flat in London now within 45-60 mins of work, OR buy a house out in a nice commuter town within a 70 min commute overall, with the property costing less but the season ticket costs then pretty much directly offsetting that. So cost-wise there is little difference overall.
What would you do in my situation? Obviously I've considered the pros and cons of both options (e.g. convenience of being in London and being able to get to/from work with flexible timings etc vs being tied to the railway timetables without a backup option; leasehold vs freehold (freehold properties in London in my budget range are basically unheard of); amount of space vs the insanity of giving railway companies £000's ever year; etc etc). And of course there's the unpredictable nature of the market (will the London bubble deflate making a London purchase now too risky while the regions continue to grow? or if I skip London and buy outside, would I be throwing away potential house price gains making it harder & more expensive to upsize in the future?)?
In summary - aaaaaaaaargh! Lots of factors to think about and I'm genuinely having a hard time deciding - it'll be the biggest financial decision I've ever made so I want to make sure I get it right...