Not to hijack this thread, but this is my dilemma, the whole weight capacity issue. Many of the Macs are good to 55lbs and the Techno XLR to 64lbs. I am a big fan of the new Peg Si however that is only rated to 45lbs.
For a first time father, what age does a child reach 45- 55 and 64lbs. Do children still use strollers at this age/weight? The Si and XLR accept infant carriers, so that is the main draw to the XLR, along with the full recline.
Thank you for the insight and maybe this question will help the OP too.
hate to say this... depends on the kid and the parents. if the parents are big and tall, then the kids are likely to be big and tall. example... my DS1 is almost 5 and 35 lbs, 40in. my friend's son is couple weeks younger but he's already past 42in and 42 lbs. and my son acts and talks like a 6yo; her son more like a 3 yo.
so what you can do is look at a growth chart (online or from pediatrician's office) and look at what age 45 lbs will hit. you can do the predicted height equation (for boy or girl) and see what percentile curve your child will fall on and follow that curve. or if your child is past 6mo, you can probably use the percentile growth curve he is on and follow it to 45 lbs and see about the age that will hit. the latter may be more accurate.
as to when they'll want to walk... i would say no at 2yo, maybe a little at 3yo, more at 4yo, yes at 5yo. but it also depends on how much and how tired he is and his maturity. last year at 4yo, my smaller 4yo was walking most of the time. my friend's big 4yo was being carried.
for me, when the kids were babies, i used the infant carrier and snap n go. i didn't shop for a stroller until they outgrew their infant carrier at 9mo. i found that there are no stroller made perfect to fit a baby and an older kid. for a baby (<2yo), i care about full recline, snack tray, big sunshade, etc. for a bigger kid, those things are not so important. they want in and out quickly and the most important is lightweight.
when they were babies, i didn't mind lugging around a heavier stroller... but as they grow older and more in number, i want the lightest thing possible.
what i did was when DS1 outgrew his carrier at 9mo, i evaluated what features i wanted at that time and bought the best/lightest stroller for me possible (we got a pliko p3) b/c by that time, you should have an idea what your child and lifestyle is like so what features are most important to you. after DS2, i did this again when he was 9mo and bought the double stroller (P&T e3) that is best suited for us. wished i knew about the P&T sooner but they didn't make that model/second child seat until later (later than when i needed my first stroller). i would have probably skip the pliko and bought a much lighter umbrella stroller later on (like i'm doing now). oh well.
hope this helps.