Pocket pairs play the most differentially depending on stack sizes, especially baby pocket pairs.

They are among the most likely hand to fold as the best hand to postflop aggression (ie: not realize their equity). For this reason, they are the best hands to play in an all-in preflop situation. But their ability to hit sets also makes them OVER-realize their equity once you get to 15:1+ SPR.

(They also make for important board coverage hands at deeper stack depths.)

25bbs is sort of the worst-case-scenario for baby pocket pairs either getting all the money in preflop against a range that doesn't have them smoked or over-realizing their equity the small percentage of the time they hit a set. For this reason, they're among the only hands (along with middle-rank offsuit aces and some suited wheel aces) that still open-ship at 15bbs+ in sufficiently late position. Even at 25bbs, you can still open-ship this hand out of the SB specifically.

As for postflop, while pocket pairs have a tough time making it to showdown as the best hand, they're even worse off trying to compensate for that by blasting the pot wide open, blowing out all the hands they have equity against and being left with a 2-outter. Apart from putting a small amount of money in on the early streets to either protect your equity with this hand specifically or depolarize with your range generally, your strategy should be to get to showdown as cheaply as possible and be more-than-willing to fold to any sizable aggression.

Indeed much of your objective with how you play the REST of your range is to ensure that you're not so susceptible to aggression that the more vulnerable hands in your range can't make a soft-landing to showdown.