No clue. As someone who skimmed through the unofficial compilation of SF canon before SFIV's release, there would be nothing truly problematic about a Street Fighter set in the 2010s, let alone the early 2000s.
Age of the most popular SF characters in 2010 (year of birth in brackets):
Ryu (1964) - 46
Ken (1965) - 45
Chun Li (1968) - 42
Guile (1960) - 50
Zangief (1956) - 54
Dhalsim - (1952) - 58
Sagat (1955) - 55
Balrog (1968) - 42
Vega (1967) - 43
Bison (unknown) - Who cares, dude swaps bodies at will and could look the way he did in SF2 for centuries.
Cammy (1974) - 36
Akuma (1945?) - 65, which is pretty old but just like other fictional martial arts masters, Akuma only gets stronger as he ages.
Sakura (1973) - 37
Karin (1973) - 37
Juri (25 in 1994) - 39
While some may be getting up there in age, remember that these are literally superhuman martial arts masters, and that they exist in a series where a 140 year-old man flies around the globe by riding on top of a commercial jet.