That's stupid.
Older ≠ Seme
Cat person ≠ inexperienced
Dude because they are older does not mean they are always on topa and just because hes a cat person does not mean he has little experience. One of my friends, hes dating a guy older then him but hes the top and my other friend has 5 fricken cats and the ladies love him. Ye know everything is not set in stone, its nice to have a twist now and then.
being top and bottom is based on their behavior or experience
Huh o_o ... w-wait...w-w-WHAT. xD No,no it supposed to be the other way around where the 29 yr old guy be the Seme while the 18 yr old boy be Uke.xD *sigh* but then again The older guy was a cat person and sometimes those kind of people don't really got good experience. So I guess it was alright xD Great manga~ I like how he own's 6 stray's cats :3