If you are trying to get a female rowlet but you only have male
ones and you exchange with the gem collector, can you only get male
ones or are females just rarer
Well, according to Wikipedia, the gender ratio of Rowlet is 3 male
: 1 female... (same with any other starters like Piplup or
Bulbasaur)
So of course, female starters are just rarer in general
And yea, you can still get both genders from Gem Collector