I was talking about this with a friend of mine, if there have been any jobs that you regret not applying for in that moment, yet you had reasons for not applying for in that moment.
There was a company in Canada that was doing a co-op with a theatre in Italy, it was an apprenticeship, the rehearsals were in Italy, and the shows opened there, then came to Canada. The company was going to pay for you to learn Italian for two weeks before the prep week started. Obviously they would house you and all that.
At the time, I had many small non important reasons not to apply. But now that it's passed, I definitely regret it, even though there's a good chance I wouldn't have gotten it, since it would've been my first apprenticeship, but I still regret not even trying.