Ignore these people 29ers are better at some things BETTER not magic and they are also worse at other things. if you can't do something with your 26er you aren't going to be able to do it on a damn 29er either. This is a 105lb person riding a 15" bike anyway so their next bike should probably be a 27.5er which is barely any bigger than a 26er.

BTW I own two 29ers, a 27.5er, and just sold my old beat to death hasn't been ridden in years 26er yesterday so it isn't like I love 26er or something but there isn't anything wrong with them.