See, i may be not the apt. one to answer this but still as far as i have heard and researched this is what i found.
It is toattaly upto you . If you find it interesting and have passion towards it go for it .
Don't take this course as a option if you don't get admission in MBBS. College .
Many subjects in BAMS include allopathy syllabus , but let me clear you will have to face Ayurveda subjects like padharthavigyan , and many Ayurveda ancient scripts which are in Sanskrit .
You will have to learn Sanskrit slokhs , let the Ayurveda concepts seep deep in you mind , Ayurveda will teach you how to live a healthy and disease free life .
You will have to study same topic in Ayurveda as well as allopathy .
Talking about job opportunities after Ayurveda .
You can set up your own clinic .
Or you can work in government primary health care center's as medical officer with good payment .
You can do post graduation in Ayurveda and become specialist in particular subject