Way OT but let's do this. Note: climb V5/6 currently.
1. Yes that is bouldering, but bouldering is a subset of rock climbing, as is sport climbing.
2. Bouldering is frequently about balance and power, for some problems flexibility isn't as crucial. I climb in jeans outdoors, sometimes it's the best option as rock can quickly cut through lighter materials. My jeans are skinny and stretchy.
3. Climbing works your core, simply by climbing more and more.
4. Don't play the grades game, don't buy a hangboard. Go into a gym and have fun on the boulder. Don't try too hard and hurt your tendons, they take years to grow accustom to the stress induced by hard bouldering.
1. Yes that is bouldering, but bouldering is a subset of rock climbing, as is sport climbing.
2. Bouldering is frequently about balance and power, for some problems flexibility isn't as crucial. I climb in jeans outdoors, sometimes it's the best option as rock can quickly cut through lighter materials. My jeans are skinny and stretchy.
3. Climbing works your core, simply by climbing more and more.
4. Don't play the grades game, don't buy a hangboard. Go into a gym and have fun on the boulder. Don't try too hard and hurt your tendons, they take years to grow accustom to the stress induced by hard bouldering.