I would guess it would be the first one since rather than relying on just how she thinks it will be she actually goes out and tests it to be sure
The speaker thinks (feels) that her daughter is growing up very fast and uncontrollably, so the speaker feels a wistful feeling towards past years in which her daughter was young and just learning to ride a bike, and the speaker wishes her daughter to remain forever in her chidlike state and never grow up.
When players on the St. Louis Cardinals team threatened to strike if Robinson took the field, commissioner Ford Frick quashed the strike, countering that any player who did so would be suspended from baseballPee Wee Reese left his position on the field and put an arm around Robinson in a show of solidarity when fan heckling became intolerable, and the two men became lifelong friends.