We took ds at 4 months to Meribel. Drove there from Scotland and ds slept most of the time. Had a nanny in the chalet who was very good. Ds was still fully breast fed, so I left plenty of EBM (as already used to expressing extra). I looked on it as a trail run for the following week when I was starting back at work f/t.
It didn't bother me beign away skiing - but it did help that we were sharing a chalet with my best frined, who is also my "guru" re paretning matters, with 4 kids herself (and both she and her dh are GPs).
Wetn the following year when ds was 17 months old. Again had a nanny in the chalet. Was a wee bit more difficult, as ds had only just tarted walking, so didn't like the different feel of snow underfoot. But apart from that, there were no problems.
At 2 we put him into the creche in Meribel which again wasnt a problem.
We left him behind the following year. At 4 we put him into ski school for tinies in the morning and then the ESF "jardin de p'tits loups" (now called the club piou piou) in the afternoon (where they also do a wee bit of low key intruction - more so in the second year) - which we repeated again the following year. These were the years where our skiing was porbably most curtailed, as you can't go far in two hours (a bit better in the afternoon, when we had 3 hours). Alo the "skiing" with him at lunchtime was bit fraught, even to get to the ESF, let alone have some lunch.
This year (ds now 6) was the break through year: not only was he in ski shchool for a whole 4 hours in the mronings, but there were alo two days when he was away the whole day!! And by the end of the week, we were able to take him down a(n easy) red run
It very much depends on your attitudes. I am a mum who is confident to be away from her child - who is himself a very confident wee bouy. I also have a very involved, hands on dh - hwo is equally keen on skiing! So we make sure it works!
We awere alo very concisous of not pushing ds too quickly - hence he did not go on skis until he was 4 and even then, oly after our ski insutructor friends had a look at him and made a judgement as to whether he was ready.
.....but all of that is well in the future for you!