Agreed. The only reason why Donaire is still continuing his career here in boxing industry is he thinks that he can still have a good fight and defeat the younger guys at 118 but if the opposite will happen especially if he will be defeated without a doubt or worse, a KO/TKO. I think that will be an enough reason for him to believe that his time is already finished because he's not the same Donaire anymore and most probably, cannot become a champion again before he hangs up his gloves.
Also because his last fight was against a truly stronger one in the 118 and that is Naoya Inoue so he thinks he can still match with other boxers in that division. If some boxers in 118 will now put Donaire to another loss, that's the time maybe that he will consider retiring.
If happened that he still dominated Santiago here, it will give him think that he can still face young boxers despite his age. Maybe after he wins here, he will still have 1-2 fights and that's enough to make him fight in a unification match at the age of 42-43.
If Donaire loses and Santiago wins, there is no sense of continuing his boxing journey now and it's good to hang his gloves now. He cemented already his legacy as one of the well-known PH boxers who established a great boxing career.
Personally, I would like Nonito Donaire to be able to demonstrate that age is not an impediment to sport, on the contrary, that the more seniority and the more experience the better for every boxer and I believe that for every athlete, this It is something that will always be noticed, not only in boxing do you see these things, but also in soccer I have seen that the players always do whatever it takes to look fit and be in shape, so that new players do not surpass them or hurt them. gain in speed, that's what they always fear, but that's something that can go wrong, in boxers things look different.
Of course, who wouldn't want Nonito to have another belt at his age and makes history, and we have seen elite boxers defying age as a factor and winning. George Foreman for example, become the oldest HW champion at age 45.
There could be a lot of factors, maybe it was genetics or discipline or the environment. But nevertheless we've witnessed Donaire knocking everyone out except Naoya Inoue. And he has maintain this weight for so long that maybe his body is used to it and that's why he has been in boxing for so long.
Exactly, for that reason, +he needs this opportunity, he needs it, it's no longer a story, things with Nonito must be done now, but of course, we all know that the business model is not with Nnonito, because of his small popularity, The business he likes is to have another type of show where there are many more million-dollar profits, this is something common that now manifests itself in all senses , for this reason I always think that here interests are above sport , They don't give sport the importance it is, but that's what the fans are for , to remind them that Things can be done Well.
Nonito needs an opportunity , as is given to many Boxers, why not Give it Now?
Nonito Donaire vs. Alexandro Santiago: Date, start time, TV channel and live stream 
Nonito Donaire faces Alexandro Santiago on Saturday night in Las Vegas, for the vacant WBC bantamweight title.
Donaire already holds the record for the oldest fighter to become bantamweight champion, at 38, and he could break that by a further two years on Saturday.
Here's everything you need to know about Donaire vs. Santiago.
When is Donaire vs. Santiago? Date, start time
Date: Saturday, July 15
Start time: 2.30 a.m. BST / 9.30 p.m. ET
Main event ringwalks (approx): 4 a.m. BST / 11 p.m. ET
Source:
https://www.dazn.com/en-US/news/boxing/nonito-donaire-vs-alexandro-santiago-date-start-time-tv-channel-and-live-stream/g7k6kfrmaroq1g9z4cn0a159q
