I bought my first guitar at the age of 15, in Tijuana Mexico, for $21. By the time I was 16 my friends wanted to start a band and no one wanted to to play bass. I figured since no one else wanted to I will since, as others pointed out, it would be easier to get into a band. Every kid seems to want to be a guitar rock star, not a bassist star.
I got into a lot of bands after that as no one was really a true bassist, just a guitarist who would play bass if they had to. Then after I had my own band, it was hard to find a guitarist that was into the same stuff I was so I switched over to guitar. I would up playing guitar ever since.
Recently I came back to bass and fell in love it it all over again. I can say that my 22 total years of playing has helped in being a better bassist even though I haven't played bass on a regular basis for 15 years or so. Now I find myself playing guitar one day and bass the next, and actually bass more often. My guitar experience helps in the Bass experience
There is no reason why you can't play both. It was Victor Wooton or Marcus Miller who once said you are never the Master of anything, you are always evolving and always learning. Even pros will learn from an amateur as they might remind them of something they haven't done in years or maybe a technique they never tried.
The most important thing is to keep playing.
