(Feel free to tell me I'm being silly if I am!)
Last week a friend of mine bought one guinea pig (from Pets at Home) for her dd (3yo). Ever since I found out it's been really bugging me - I had a couple of guineas when I was 12 and got very attached and afaik, unless advice has massively changed, they're far too sociable to just keep one, especially by choice (my last one was on his own for a couple of months but he was very old and I didn't want 2 more so it made sense).
Both parents work and have busy lives so I can't see how the piggie will have more than an hour contact a day at absolute maximum, the dd involved is lovely but VERY boisterous so possible 'squeezing' instances give me the willies, the family have a barely half-trained Westie terrier as well (I know piggies and dogs can coexist but that seems a bad match to me!) and I just keep thinking about poor lonely piggie left on his own.
On the other side of the fence it doesn't make me 100% objective that I'm jealous they just waltzed out and got one - I would LOVE piggies, I've got whatever the equivalent of being broody is for getting some, we've been considering getting some for ages but space is an issue and it's not something I could just make a decision about on the hop without being 100%.
Question is though (after all that ramble) - should I just ignore it and wish them well with their piggie or, as sensitively as poss, point out it's not ideal to have one alone and the terrier (let alone the dd) might be a problem?