Am I the only one clueless about naps?

Meredith
Can we talk naps? My LO still takes four a day and they are typically between 45min-1hr 15min long. To those of you who have kids that are taking two, longer naps: did you sleep train them to do that? Or did they eventually get there on their own? Not sure if I need to be proactive in changing his schedule. My LO really doesn't do well being awake longer than 2 hours though.