Unless you have extended family or somehow became smitten with a foreign country, I am almost certain this is the case. So any attempts are really halfhearted and very little progress is made because the commitment is so large.
This is why, if I ever get around to learning a second language, it will be Esperanto. It takes an order of magnitude of less time to learn and gives you the accomplishment of knowing another language. (Plus uniformity in language is cool.)
Your opinion is a pretty localized one. For many people learning a second language is not an option, it is a must. I would have a very hard time functioning in my field without access to a second language.
You can make do with less, but it's probably going to have an impact on your career, at some point.
Though that's why it's hard. Just like eating healthy and exercise isn't hard, just requires dedication, yet notice how few people have a particularly good looking body.
The opportunity cost of learning a language is also immense. I've spent an incredible amount of time listening to and reading Spanish. It just isn't for everybody. It has to be something that makes you happy.