Very few that go for the airlines get there.
Not many that want to be pilots even get a first job.
Those that do, work hard, long hours, often living in remote locales and all for typically a minimal reward.
And to restate, most won't get to an airline like AC, WJ, AT etc.
So do you feel lucky? Can you do it? Can you handle the sacrifice? Because if you want it you can not waffle. You have to go for broke, all in on making it happen. And FOCUS. Progression is the name and quickly...
27 is still young. If you have the money go now and start flying, yeah some people take a couple years getting their licence. But really if you want to get er done quicker you can. Under a year. Sooner the better. If luck scores you a quick job and you pile on the hours, early thirties would be a blessed career for getting to an airline. Mid thirties average. It took me 10 years and I was the old guy in room. But I'll have 25 years with my airline when I retire, maybe up to 30 as working till you're old seems to be the trend now. Airline life is good... Lot better way to spend your life than what all the commuters on the highway seem to be doing every day. IMO anyway...
Good luck.