SANTA CLARA -- Colin Kaepernick is "universally respected" in the locker room and "loved by his teammates," coach Jim Harbaugh said proudly Thursday before the 49ers' first practice of training camp.

Harbaugh doesn't want Kaepernick, or anyone, to keep thinking about last season's 34-31 loss to the Baltimore Ravens in the Super Bowl.

"If you're still talking about what you did yesterday then you haven't done much today," Harbaugh said. "Now's our opportunity. This is the start of training camp. Make each day an accomplishment for our future."

Kaepernick's emerging status hasn't gone unnoticed by Harbaugh outside of the locker room.

"I see that from the 25-to-35 demographic, too, that are buying jerseys," Harbaugh said in reference to Kaepernick's No. 1-selling jersey. "So people relate to him. They like his company, they like being around him. I've noticed that very much from our team."

Although Kaepernick is entering his third season, this is his first camp as the starting quarterback.

Harbaugh reflected back to when Kaepernick started making a positive impression among his younger teammates. One such cohort was wide receiver Kyle Williams.

"You see who he is. It's not like he puts up a façade," Williams said. "He relates to all of us."

Kaepernick was making only his 10th career start when the 49ers lost in Super Bowl XLVII.

"I don't know there's a more fierce competitor around the league at his position," Williams added. "When he got chances last year, he didn't blink, he didn't flinch."

Kaepernick's ability to both run and pass at elite levels have kept the 49ers' as Super Bowl favorites.

Harbaugh offered some advice for Kaepernick to avoid big hits: "Get below the pad level, you know? Like a guillotine coming, it's coming, gotta get under it. Gotta get under the guillotine."